{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134994",
    "entityType": "User",
    "nonce": "0x7e6501b21e7d0897cf894a5ac0fb98ad4820c1193680c5ec840af33c53f0d834",
    "signature": "0x84b0c1bc95a5f217e60213970723167c498778dee37f7940bf0c6be0ec08766f7bb9f01216c8e176f63d8c6f517271ab7f04ce280003ddbf2e844609f5c24a0b1b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}