{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200829",
    "entityType": "User",
    "nonce": "0xae33d256411dccdf445442a7d08061dbdecc4953727e45469b176e305f5e2674",
    "signature": "0xd5808b71f9314b5915e26dbdcefcf8c5fdb52b98b4564c7565a1cae492e1075256d31396ba28ca7b9bc5e029b5db9e20873d4ba864a74b36f82dc922216cca561c",
    "signer": "0xd9bA17330fFb3Ea1356C5eC14971D9e1f2cb5200",
    "userId": "337125448"
  }
}