{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75085",
    "entityType": "User",
    "nonce": "0xe3d5c217562cdbf76efdbf9b0cd80812d47ed3f2e30b523f0b91dc37da34a39c",
    "signature": "0xb0b87ad47a846133182dba50ca53043320d69922bb74098247562c1dc30788cf2adbda6c4553db959615cef091a2359e24be533648e796002ee32b4d3d46aa3f1c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}