{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0646f6291989d368c9e9c71b90f1999deed5ea5d40e49e08d5b0b035778663ed",
    "signature": "0xc468725d3f2cc1d988ad86c2cc4e57095dba7e31f29b99112db71284737fa28273cf158f81e3f65dc290601908f24d479c922897ff99173fcc06155063bfe7bc1c",
    "signer": "0x5fA6a9a2c33130Dff176CCF40A78fFCc1F560340",
    "userId": "659425658"
  }
}