{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "401245662",
    "entityType": "User",
    "nonce": "0x2dae3807444bd9a737d23d07df56cb44bd130e5f6ccbc0f092f5d1f41baa913a",
    "signature": "0x0d29146c89ebb586654813a25b5c43bf06a4ee458e58e8b7d4cd40577ca577fc34085a6e18680a5e4393f417f52705758f80259e572ae4ad3c73d466f0861b4a1b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}