{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "599112855",
    "entityType": "User",
    "nonce": "0x93384bde1eda250519c77eb2ebc6b467ae1952d0ba5683a7f9f73828032ca866",
    "signature": "0x0cb0b9ff13f35711c64060e2a66746ed95893f59077b5d7a9b6a5f1da699f15910036d740fb8c0eb0928401b78090390e4ea177f2febb415f65e85e823b4b2951c",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}