{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "838777725",
    "entityType": "User",
    "nonce": "0x62cd2b9c4c8abf78d4650852e662b82d27abc6ce637f94dffd989879db7c7f42",
    "signature": "0x7061e36eeceda2315ef86debee837fbc07d213346b697b0ceeffb7006faffde47e7239d51159a3e9ae9310c406cfccbc057fb7db7483902a286e49b3e58e2d331b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}