{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "361793",
    "entityType": "User",
    "nonce": "0x52012a98c94fdc0a5de451ce5783d2ec6c4d688e18500c4af5f1a62dbeecebc8",
    "signature": "0xa57c4f785a23f7f8c38e9fbccbed5c30424ebc999e820ab43bec2d79cc14c3314f455dcf6b15681b510a63f80b9e340958f76756ff7c9cd3cd3372ff3ead78da1c",
    "signer": "0x21Bf75Cc555eE0A19Fefc54665189807c73DFFD4",
    "userId": "833426398"
  }
}