{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "452074494",
    "entityType": "User",
    "nonce": "0xbf028fe01a7f63c94b20a72fb5d5b259abc3856baaad0dab9aa8f1127b2f4f97",
    "signature": "0x68435116ad52d85de80334b2cc0faa8b8aa6137569c79544db2352bb5909b98f160cef05c90acef3d193161b5db78262a09d719e09be9691ac70858dad56b1891b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}