{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1481230",
    "entityType": "User",
    "nonce": "0xdd3b4a9838cb6ce80ee784ca856ff2335bfb8e24ac86c12dca419d899031440b",
    "signature": "0x91c631c1aefa7abb2f89915449b66c7cc4e59e572746ad5d1c6c7b6c113de6bc10ba700f37209ca7f7f7cb0a56170fee0219f16996f91a79378dfe28c13671e11b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}