{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1686476",
    "entityType": "User",
    "nonce": "0xf4b2f4a40e1b4f63b3b511e7ddfa19e99513d12a1ebb1103178b1a9c8f8d6bd9",
    "signature": "0x109a401ae11a943bddf3e5b94cc577261c018b134a1b10cefb03d67cfbe14c4764bf2929873371d8ae26fce6fe8d6a25075278b92c76fb677bcde7c318f4295f1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}