{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x22fb230877d2b3874e222f47837f8259c26407fd356e1f1a44687e13ded96e30",
    "signature": "0x9e9a3b2f0aca7165324a99cce54e423c882edd6cb1788fc5fcb52060613d32e338b5450fd81bbf920ac93a87db4dab49e5ce79671bffc220058f38b7d959c9fd1c",
    "signer": "0x4d84865eC9840b029213f7661b90599431ed21C3",
    "userId": "477260546"
  }
}