{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "834636350",
    "entityType": "User",
    "nonce": "0x670a03afd0f5095f637183e97c956515245905fa4e4105d66231f968786173cf",
    "signature": "0x6bac12421f51eb7767eeafe08d64741f55c73c35ebe032b5eaa12bbbb00707d9136f79171ea9c2dd69f6eefa35b80d66fde384f7af117c8bd1273b674501bb161b",
    "signer": "0x61aC959C6029A2Cba66cD6B9AD35c9d7120DC52c",
    "userId": "313708333"
  }
}