{
  "manageEntity": {
    "action": "Update",
    "entityId": "872808777",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraip56jlkmoawn7ue2pmlk5oorwibgvlhwwfbaxzzk5zya4alpig5a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":670838926},{\"type\":\"playlist\",\"playlist_id\":838580234}]}}}",
    "nonce": "0xcfbdfc482b9acb78a49fe107feff0fc681e014651a350684e4c7331cac7ef30b",
    "signature": "0x52ff55e6a6770f75df55e92c2e74effcdfdd21cb9ce95c29314088e56960813744a6c7297685b82788af467d6c99d9c854db0b79599897a2b184d2746b12caa51b",
    "signer": "0xa00cA07D6428495DE7A2962e7C753A6C70f87b7f",
    "userId": "872808777"
  }
}