{
  "manageEntity": {
    "action": "Update",
    "entityId": "971347459",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x82fbbf73a1e761e098197972beb8adabfd896538100a8354424c8505154a5bf9",
    "signature": "0x5377e94d3e0481af2627dcee8b69e5caa7f030a5daaa0f2582fb7abf60ee64f37582d1a6c97e0065f74faaee7b2b226b4bf3829924b69b8e679a5bc56c87990a1c",
    "signer": "0x7a70a699f16Bc502842c3eD59c29526323380747",
    "userId": "971347459"
  }
}