{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27607",
    "entityType": "User",
    "nonce": "0x421f3f82d33194d20ea1034888cbdc85dc395778e8343dd85934ec8ae40c995f",
    "signature": "0x0ea2a5645dfb2c9c977586e4aaf4f46c435607f5efb43857027e4015a7f1ee631157e6f1b5930d4e41793ea66d45a4a0a3ed7f18f40594b51e09b0404bc2d0601b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}