{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "475275462",
    "entityType": "User",
    "nonce": "0xdc593cf93e7e2f8bfb568fd81341781db8fa4bae4a9e4cde2ce19e96a8940676",
    "signature": "0x4239d13017e69bbfd075a48920f8f771b0c4df09bf64ac27c8651d4913e601734ca114c4fd71a428870fdb4928a21f036e3406f9a403d20e9aa38c4732fe57ec1b",
    "signer": "0x5D012C880480A2E1ab4345f6F374CFf73e040331",
    "userId": "10449019"
  }
}