{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51702",
    "entityType": "User",
    "nonce": "0x1762703abdcbae397182c5ea6fcedf614ccba8103e10c88139934c2b43c36a54",
    "signature": "0xeccf606adc611c579252b2758fa78f480717358abcd17d1ddb82fe59e7c7275817280e6a5374e0a3ada19b4485b59f89c1c4336c6711188115d28b5dfde0172e1b",
    "signer": "0x985bA1e3B976DAA7155F6B6B168189834E4a15e4",
    "userId": "124122"
  }
}