{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27983",
    "entityType": "User",
    "nonce": "0xa512b917266c118397862a188483208c3d71d33b828d85b19de86c377a96fc1a",
    "signature": "0x5640255dfbc27fc2635842d3ceec4c86ce1586e465a65be0535b77a182f55004750e4fcc845ef0abc0076570aada874693cdbd93c080e7f59db9e70035c7947b1b",
    "signer": "0x6CCB8A92A20EC60B9775E88e0B43F78bC2F2290a",
    "userId": "531781827"
  }
}