{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108860",
    "entityType": "User",
    "nonce": "0xa66b613432f4b49c156d1b378d1cd9c89072c8d82a6a33e79dbfba2da76b1b98",
    "signature": "0xad21b811daedd6853866466d55b76e1c032a58b1c775e13dbe3275dc8eeb3bfb03c8b9d6b97e927bbeaf2f43d7796a2e69c234fec92d80e3060d1438d025b6241c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}