{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0x40bf3761f9cd98c8f6160b3d478e17d2045aa2e8899a0be3b02eaa18fc2743f0",
    "signature": "0x4b479649a197b1be6e1acc63516d526b3325c4620eb0195d30cb71b8b627904c067869b0a5b2e863238bdc3f40dcc7ca376fa41c8db9aa4f0934e6e84f2e9a391b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}