{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175233",
    "entityType": "User",
    "nonce": "0xbb438ffa8cffdb67d1e1d947fcdd969e8f9d452bceb68c8aab6e818a508f5418",
    "signature": "0xa0ef9863cb76475485b7167b11b7da23a4863774b0c19c1409ad5e2399c1fa20329bf0b57834a8ff7b7d750cec1164c73deaaa9316207b76b8c90b8471cab9b31b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}