{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0xd12a094bdc012c3ce4db02f270192f5277db92ab7584bf35fc2b298aeddef297",
    "signature": "0x77b7cb99f3da889a122d575394e94f838519a597bf8aa44e44dcf88116b69268011a86e77eeffaecc3fc5d057e0d3651b7f21eacdca689538eb26910600565f41b",
    "signer": "0xb001DCb64Bf57b3EcC76C4Fe5AbfE2a8B084D6ba",
    "userId": "641557420"
  }
}