{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xed95a2e30c4d1d4e59d67c44e8f1a4a1799ef89b5b804b0555f1ce15a2f2a45b",
    "signature": "0x92d704a8b78c6f52427cce6807e6bacd6f6c1a336e6708705d1b8d98233d28386623b5908838407ec0cb6526ab53c4b10a706dbad880cbbe64400e69191632801b",
    "signer": "0x233d1Bef497eC47C80AB07e9229CFf45268c649C",
    "userId": "506861371"
  }
}