{
  "manageEntity": {
    "action": "Update",
    "entityId": "154085595",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa3adbf7587076a9a72baaa826f590925893500268a1b8d4eebf79323d6c645fa",
    "signature": "0x76b4a0f0e3b3e287bc455a0c73cad9ca9a6e2fe879d00fe73ba7b5762566174858b180b57d762896883589573197b5c6f12e9793c9a11cf9dadcb9aca86ae5681b",
    "signer": "0x5b8BFea922d3E94c01D9b58040d1Cb4E8BE244EF",
    "userId": "154085595"
  }
}