{
  "manageEntity": {
    "action": "Update",
    "entityId": "11782826",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xaf0c8590891f3178232c2ec85ddd44fa0f0f9d53e85be495ec1ba1431e60eb34",
    "signature": "0x83a706f347c8f03252930d69210ec1ce6eaa61e89b38cb6d393402b832338cc3227b5e1b1c387a2d3f57ff6c94ae7095096541312fddfcdba7d2b123e97ccaa31b",
    "signer": "0xFc15451aaab46aD98f544A0f88649081128275Af",
    "userId": "11782826"
  }
}