{
  "manageEntity": {
    "action": "Update",
    "entityId": "747318526",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x71929a42515de3bbd022e61d32de9c33cc12f8ce6464c8e14e4be414e33e2826",
    "signature": "0xd0f7be243b47f499f0f927ebba408b1e7bbd97a25c80af344ff1f6e124aadd0853a04394ccdf7e2cd3c730d7af5da73a84cf2525b396d5277b7d063b7f2e65cd1c",
    "signer": "0x2b2d3D0D8aAaDE4188b059ebcC3C79bb5a1D5a5b",
    "userId": "747318526"
  }
}