{
  "manageEntity": {
    "action": "Update",
    "entityId": "260922694",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe00549aa2a9567d1c8b6226f72ce2a83360c9ee5213a63ca59815ddf7bea27a4",
    "signature": "0x9a7e2b264ea7a43d58a79471c4af53926dfa797589de2557577139df158128c433a600d1e4a9a4ab30ee21ee1e18943d3dede7c95e44bbcd9c3b273aee7c43101b",
    "signer": "0x52f7b2B9D6FFa5b184C438823662CAc970F19F7E",
    "userId": "260922694"
  }
}