{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd20ced1b943781c0d5a8bda5c24e37ea6d5c8444d88fb1835377a1df38034543",
    "signature": "0x594be2999e723de10ce61a10cd55bf3658a58570185a910105204ab6fdb169c93a25968a8a73363bd912c4ff7e652fdeb7ce3ab09130e8f5c82677a0199427a41c",
    "signer": "0xE407BDA717747d845f863a6593B277aabf28d549",
    "userId": "490823067"
  }
}