{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "691749494",
    "entityType": "User",
    "nonce": "0x4a523d1bdbfcc9fa3be3eb42d49a7ba69596c40beccd6d582040ccb72fa1c7b7",
    "signature": "0x36f8006e7ec347a88801336993dff1a4458bf783ef1036577f6e6d850be8f5bf1d5320dd7116105d48429cf185852426fa32b9a9a34fede7402faa81435dc4491b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}