{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27841",
    "entityType": "User",
    "nonce": "0x88fc464e2cc451e741139b43afefe4f819845970ff8b35b52eb15df34780dc22",
    "signature": "0x7c637d6355025e5f09322903d8c030bcaf81ce46220c58601736530063fbeaff2a0239521dccc263cab92c9beddee7cfb7c2e140ef0c4aa44401933e6d2d9e791b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}