{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "102629",
    "entityType": "User",
    "nonce": "0x51bb7dd1e595ddbbd1081dff097da0dba48fdcc6d8891d5d19cf487c0414c9fd",
    "signature": "0x9cbdd958e22f3396ecf61eaf024079f91584d0764ad5ac6278781fb4a9936c566c84d5b3b361165b3d2b88ed32362b45a5bb11cc61f19240f3950c2e133f09e31b",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}