{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30309",
    "entityType": "User",
    "nonce": "0xa915b80746bb8caa1fbb0e41f0b32d95c400b8e6ffa2fe88c9d854556621b575",
    "signature": "0xcc6e85dd6bc87a70d810b8c8466934345a029467c66ab345c41ba9d1b47a37b170c4812fb612e1b9842bf4af8d1bd4a44805945ed001530822243c87918942b11b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}