{
  "manageEntity": {
    "action": "Update",
    "entityId": "100710418",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0e5183752a8ac232e8cd0b5cb241d3bd55a1c25ccaa8b51f6b59a5526d11af2e",
    "signature": "0x0f4f99b4221000e18c3c629ec2125e5540f5d869dd08c74fd762943b831a55b676537eaabbae3c601c269ceb0cdb81b0f56b6c334c900a8d507f601ad39b74891c",
    "signer": "0x0759071d18A0BC43B65C77d96CfBBe9eEFfD91DF",
    "userId": "100710418"
  }
}