{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954705651",
    "entityType": "User",
    "nonce": "0xf8ef6fac1511c10eab9dd94bde57bd8405386a6eda1241600dcd8228243d679f",
    "signature": "0xa680df3b4b28ca36032bb40fdd20ec91004ba2e9c9b359dd24d353064bfe531a4c984a380c0c7571ad3bcbc2b8eb9e6b2bb760c6d753ffed4421665c402ebc4a1c",
    "signer": "0xf76Be3e57D30ebb176cA7D31f49157c7f56E6b0D",
    "userId": "204302128"
  }
}