{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "133224043",
    "entityType": "User",
    "nonce": "0xe45a3d32b6cc3c8d170384f4ad1f0b9a0eb7b47f374c2db309ce91461ecddb47",
    "signature": "0xb7a3c5fa1ac4bd587df17ac9ea64dc47b323c1349ef17e761514f55bec10eed24ddaacbc8fce0cc28c1c0e5929a386bde207816a4d769648577b20b27fb8dd2d1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}