{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "377242874",
    "entityType": "User",
    "nonce": "0x18a38be0018f00a7af38bc893b61f84fb521d00a816d342caa1e6c5e1c152e03",
    "signature": "0xe3f811b784c9d449c7d418b6b5ae952021f4e47b121ef245128ba6486a5b1ad82de6c36575c69af0c2dcb789389715e245475256ee1cbd80147b5f6b4d1fbfd71c",
    "signer": "0x316933E449A0b429014E405447c447C9Bc472bE9",
    "userId": "451684863"
  }
}