{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7d4d63ee1f854dd68262fb828abd5bda81bbcf247ec34a668551960c879b3c0f",
    "signature": "0xbcadec09ba86743421b81ac168af7d78f4f470c56c85e4b0d00650a881d31b710be8609ccc9888c8be37f1ed2da7647c2124c7fe3c1a35100ef8e8e24c4810431c",
    "signer": "0xBc819B7444752c1F4EFE89a795c656F647aadb49",
    "userId": "627826860"
  }
}