{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "862512182",
    "entityType": "User",
    "nonce": "0x004df33cf9608b2c87726002cfbc71ad93854dffa37c02e8d39cdd31d37e9548",
    "signature": "0xbeeebc4a28ad2c1c0cd48006b6c8cef499ed89225d2c1431adb0f23825c31e5658fb8b09fbb8a71f200c853e926917e3a47a2298371a4226e9cdcbf73d7700301c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}