SUBSCRIBE request can not save in watchers table properly. Both p_user and w_user are subscriber's name!? In this case, they are both 'alice'. The SUBSCRIBE request is shown as follows:

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SUBSCRIBE sip:alice@148.88.232.101 SIP/2.0
Call-ID: c14d16bf8f758655b09588b764c3f0c9@148.88.232.101
CSeq: 20 SUBSCRIBE
From: "alice" <sip:alice@148.88.232.101:5061>;tag=z9hG4bK41052461
To: "bob" <sip:bob@148.88.232.101:5062>
Via: SIP/2.0/TCP 148.88.232.101:5061;branch=z9hG4bK57563
Max-Forwards: 70
Expires: 360000
Event: presence
Route: <sip:148.88.233.209:5065;lr>
Contact: "alice" <sip:alice@148.88.232.101:5061>
Content-Length: 0
----------------------------------------

HELP!

Regards,
Kevin

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