{
  "manageEntity": {
    "action": "Update",
    "entityId": "571572454",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdb2b6f1b97e24374aec9ba9fdb7933bb74db84828c858332f12ddec4a830fc1f",
    "signature": "0x8bfa4665df6a6fd3cee404dc93016adf6793ec6bd8bba0178e5ff9c95b9b7501733ecca18224f22fbcf6c1683c367c2fde76505180e2ed23a4f8a6df4523d08d1b",
    "signer": "0x5A04fdca1d89B7bbE39216f89f7af924D74e59D9",
    "userId": "571572454"
  }
}