{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "728570067",
    "entityType": "User",
    "nonce": "0x8a431563eede11fc1e580dd0b03d97ab086f0517f624106a4d6da17225fa5d01",
    "signature": "0x60d8e429aa125059505951d3ad11a4f025d738d9a7d5936b749a571d6432e0ab4ca01757b6b4d4d53e17f6f7a8cb8c903d3c37deb838c29b772be89aa11214451b",
    "signer": "0x00ad722e3508336F04f390c0Be53dC5f7bE9c9a4",
    "userId": "160386533"
  }
}