{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52403052",
    "entityType": "User",
    "nonce": "0x074e402060884696229b7f7958a461d481a55d3517a94bc6d647d7c384516ca5",
    "signature": "0x5e3bad231ad05e42d9a2de1e9ba3cdc4c8ca044ac200b915145be74c85730c56025368af337742c739483a198576c7dd2f7ef1128705a16a16801523a3d92aa71b",
    "signer": "0x2cB91f65474cF6C630747f285FD27a2beb69553d",
    "userId": "855326662"
  }
}