{
  "manageEntity": {
    "action": "Update",
    "entityId": "887741865",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xafb95348cfc7e7cbb96d54ec341afe6635ebdc50b427563f6f9748225d12cdef",
    "signature": "0x3fe293e4c1bbdab0f08a046dc535862a3e1cf8ea4507ec5232701a657dc19885146cf936cfd0b47e6bc5f193b7c99620fa3ae719bb963be5f2db16aa15ba5fdc1b",
    "signer": "0x2230770EC85946F97685aDECD4b734f51662F050",
    "userId": "887741865"
  }
}