{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3d630ab816cd2e5d3d763919ea10f3fe83f654d360687439b717172bb5b066eb",
    "signature": "0xdb8b8b2711e0d7d8df30f57cf5e54ffd09373aaff001c738f7270bcaf2265f437ff0e632c0825e18460c9b538fe7683f586ae385d55781656ab73b6e8f4fd9411b",
    "signer": "0xC5Ce41FD48bcC739401a384Ef803832CAa059e76",
    "userId": "55302500"
  }
}