{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870684573",
    "entityType": "User",
    "nonce": "0x42db5bebf0ef4aa8875a5d5cc287780ec592c08d3ee644184ce98cabbb5949d9",
    "signature": "0x924f061f3b8532dfa298f819aa79917fbf819b487224213f63f54f398bde82211ca63be523286c0aa632543fa5e7fb643d09bfed69b31e7b59604d4c1939c5741b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}