{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "712688986",
    "entityType": "User",
    "nonce": "0x143dff9aefd7faa3a4d2f895c234d804800a9fa717170e093376ff57ac1cac0e",
    "signature": "0xe3735a3b4fdbd26b0afcd52707e34409e8f7877e502d590eaf67ea125bb0c0d8361af629ae485e248f14f909f48a661ac6fdc5125e8f7376612d6609ee1964b51b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}