{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37350",
    "entityType": "User",
    "nonce": "0x7926263900cd582319aae903fa385b81003b5989056f060c8ec3dbcff716f44b",
    "signature": "0x5a201ab09eeae4f395cbffd7f794dece5ef14b2dc6fd9eeb8368f0c74c1aa4302a97980bd67b89eadaa216ca045fc8f20570799fbdf725b739708921fe921b101b",
    "signer": "0x39788E2D020D54760872178Cea0d5AF12732F02D",
    "userId": "720903941"
  }
}