{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296519",
    "entityType": "User",
    "nonce": "0xa32942fc121b88e3b571f161c5acae31b34d77ad47d9a85817ab3f18b355ce1f",
    "signature": "0x9b152ac79c45c992f4c8a32af3f0f5999ccdf5febecc8b28cd8686fb8fe7c4fc452d42bcc1b45f689dae08ccfd673931f763cbb01a8c5ff5deb6c64914b8ebbc1c",
    "signer": "0xbE2860E3A43979e604Faf88CAEC0E4210F7b3Dac",
    "userId": "128910477"
  }
}