{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "526206",
    "entityType": "User",
    "nonce": "0xd4a0e27149ff20632fef6da8b93aa741ce48495ae6f9cd4041e39cc97eeba7d1",
    "signature": "0xcbb33d0fa62eec0d7fca189c60327faa2ccef04a17323719c17f2fa5c880d77e5f673bee27c82c4551f47355af74c617e857e1b67e08e1fd59d905b374c5d2fa1c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}