{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "273715",
    "entityType": "User",
    "nonce": "0x9dbf6d52d363c7605f55d50e96bccee3073d4da7e6672df455f583a5e209403a",
    "signature": "0x119faafbe2ad18edf665dd6d606c3992aeb66d43f2241ab25b931b48f8b6f58f40965fe1dc1a4e1e37091a1ed6307d94de0ef01d9f9a2cd1d51635643030dac01c",
    "signer": "0x8e843e061C77d2F2C655e7a2c77c231b0A89eBA1",
    "userId": "10318501"
  }
}