{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb34ed0e5892623c44cdc41f3c4f231a6c3ce97ebbcdfa6433ac53e9b08276334",
    "signature": "0x99ef56b617ed0b8461be44969ead8efbf08b4d68653cefb06118c415f8ac65c12c0af808cc157dcd73ccdd71e4165dba514a91d508440ac34fa1a154825e378e1b",
    "signer": "0xb3A168d98332c0b778a2F474499ecF4F0c2c9c96",
    "userId": "284499948"
  }
}