{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0x8acfc87124da9d4363279b2f8461d8dfcbe04b6de2f6436fb99ad8857dfd74e3",
    "signature": "0x12f5d4bd4510bcfbfb41329a30fe0d68f18ae0c5f6d932d0a2518f2f86457ed0704e1039a4369e3797716b628ea816721e9d2e927ef9aa7f1f20ea51d9bea9061b",
    "signer": "0x951a1F6ce5f5323f8C080362d97ec2E20305cC40",
    "userId": "566075266"
  }
}