{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "194923",
    "entityType": "User",
    "nonce": "0x5254d3f6eaa162f34d51b9611292dc28a20138bb4d93685b3b5edbe2841ebdb9",
    "signature": "0xfd39db63f29348352fcb8263dd590cf67dcf6d18c61022b08f26d3464dfedc1c6b1dfae2fde3e33300a0291c73a525e42d1038b7c8211747637b705da28973ab1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}