{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120749",
    "entityType": "User",
    "nonce": "0xf8e5c49c663cf6f78aa39d000feff5caaff393855f11edbbe7277b907dec571b",
    "signature": "0xbccd7afb928cea4592e3d014dbe548963fe3e1f6cc00328e5e2c643275be38644583f22419eb41e6f63bf722a40c7b6a48ec3540c70774b8444dec97080efb2b1b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}