{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "254784",
    "entityType": "User",
    "nonce": "0x03e68db821155839e6a002895e6423377a3190b29d998a1d663c17640c6394df",
    "signature": "0x9bf0a9d2ffdc3fce8f18d96989da0132349d53a67b33939243a9c1241c5feb8e27c2a6e174de3a5fa082bb00129933ebaee3ef283377d119b8293937581b6cde1b",
    "signer": "0xb99C26747D29b7F4376FAc35C8462179e32e43af",
    "userId": "391851422"
  }
}