{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175675",
    "entityType": "User",
    "nonce": "0xb090ae0668f046f960cfa6c0fa9370ff618469c4603d5a95c071b6d70594b6fa",
    "signature": "0x0b6a7eb0ceaaf9a2d56e5e52e5687fa52c8b534f46d4a5bc4a0b8e4043e6b5994c9a2948dc4197395c983ad82c7624a990c5d54f5b8d952efaee7a69a4ace9611c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}