{
  "manageEntity": {
    "action": "Update",
    "entityId": "974135633",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0d2dfb6b29e8e47db83bec96fb1a0f2880c7b2d7ffea1dd2317d47954031d75c",
    "signature": "0x084bc81966bd4b6402dd4691398f6bef4f54f4f8437e49d892f57e14ece09bbc37b23aa27ca02f1d3d82ceff6a140935833a34fb74fbcb8678d68578fb5984ed1b",
    "signer": "0xa46A0a594054691B5d8AF411eE84afeBc428C090",
    "userId": "974135633"
  }
}