{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5b584f2e9a96cdc9e69bd6f709d29b0f3fe412ed81482a6e02c297919b33edce",
    "signature": "0x8788de853ec95cc976d2a6556a5a32f68dab26b69549acf990229f5adfb1bd275e7aef8af4b45c73d0cfb663cce242a03c3012bbf68bc1baf34adb66970e5f751b",
    "signer": "0xFafA36f81706d6865F2F5a2aA1cA1c7a29eFCd42",
    "userId": "108520320"
  }
}