{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138114417",
    "entityType": "User",
    "nonce": "0xaaa9d89f95a45580fa31d3d19129ddb9b1114e369192da4fdd9c14b08b4a3dd0",
    "signature": "0xd944d28d66dd338232406dbe2763340f4b009463a438e6c8626f4f8f51f5dce328f9ae57f6a87d4946fe1a65a135217271b657325ea6d25e613276a240a957ba1b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}