{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "615176332",
    "entityType": "User",
    "nonce": "0xfa648250a40104731fe02ace6736fe8e1ad68333c512f5dbaee67b4adec0b50b",
    "signature": "0xcc903b374d9da3850a7b4e011a53b1aa016cc56cbfa8021f0357c0508b186ea333cdbc84f9d534941648d4505ecfa2964505ad891adb78a7ec16918be23b361d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}