{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0x1423be585b2a7405e83406f2c33e562f535517e715b08b987dd912b9f985b725",
    "signature": "0xa66a79e43727b0b8bc8c5c99a845638819c3ca13636f6f0c36e2af5ed4bf880e7b5dc5d2d16a5fd71b35e3da873c5b2a7e6c3e071b09e98afe5d2aef41fd3e751b",
    "signer": "0x5f7a2bcadaC17cD6C8Fd726c2Ba3dE8bE24B7D31",
    "userId": "629635445"
  }
}