{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "225974748",
    "entityType": "User",
    "nonce": "0x59ae125c878a00db41886c34f1b0f9150db224df561bf90679eb241daa4ecde7",
    "signature": "0x447c1cfe362eb69798502145a83d397c1a80e37ade0c4836bac70b58b70a9cd4583fdb601343e821a31282f118adb0305ab2a6395955f4eb1254bb8286d47b241c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}