{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74164",
    "entityType": "User",
    "nonce": "0x600b114e631c0a537c33a81ae764ee5a4616b2ce9b94e3a7ad363f7e52027f1f",
    "signature": "0xd284bbf92651db5c8b16fc21ebb092df40a2f8e104ec7f7331e6b7f5bc75c53c5598b59d68179ec46ff52bd6ba75384392a187973e8f7fc49f024b8874f9a8891c",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}