{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0x57c53fcc63d1bb7759cfeee9915477dec8619b855c2d6d23ffed7efcc81b9243",
    "signature": "0x558d2ccfa8b68aba724a3999beff739a4a5eb200265d68ecdc57a45f6b546f475d0e2195a8dec4b6e86f57dc6637343ec1cdbeb7706d5d20770501e4cb63bb661b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}