{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584085466",
    "entityType": "User",
    "nonce": "0x74c70e2c1791d58610b0a0d990823da7ab1e1df3db9a05e583d430ce7963bf55",
    "signature": "0xb277a001fa4b929f57550b31668c11ca1ffae7385cfb8558e09c06f5790f27c663290879198ce30a75e3e68bc55814de9fe8ffdbc0a662c30493c2e1e225fb6a1b",
    "signer": "0xA2431a8293fD33C6289244D08A91489fF2C9f18A",
    "userId": "325308787"
  }
}