{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1511642",
    "entityType": "User",
    "nonce": "0x1718c771cacd6e3750952cbbc3306135280f18d3a337f17b184684c1a51db590",
    "signature": "0xfadd3f18e2c82d48b22518bbbe3ea2d65d27670b3d6c789191ecf7fed8cb84c5350263b36cff0d93a0d6e192b9e8828bd59e6996b8526e3848937835ca0da6251c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}