{
  "manageEntity": {
    "action": "Update",
    "entityId": "348291580",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdec31b0f1411934a989a6112fe53626c893c7cf7f32d0e4cd2fe72a466d472ee",
    "signature": "0x7761f002abdabe83683e19dff6328a6087cdce0aa3c1d72e355a809774b099044d18b4ab6ad9dd01d7207543f63800376e5f7576554bf9eb20200fa739f810941c",
    "signer": "0x991a9689fc2302f5aA49d584CB5eaF3C97258676",
    "userId": "348291580"
  }
}