{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc1c0aa1b46dedf360e37f29e492adb246b72ff15ae28c64480ff9193d248d5ba",
    "signature": "0x17161e375a86baae36313f9d3ca3f9a7b8a77f0fc91f869d1e03207ddfdae10c06671d91bc481b86510748411f0d26dfeb9a02f37862837739160e46cd57e96d1b",
    "signer": "0xcE1000874CF7A0a7b16c35A55F7D6f10C607A868",
    "userId": "442277469"
  }
}