{
  "manageEntity": {
    "action": "Update",
    "entityId": "613308197",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8ebcbbd355f5e5f4ee9d9f9732b717a038dc2e35231d62ffec28871130b30aea",
    "signature": "0x47c8c0ce8329bd0e889dd138153dce34ca8b4f3f3fd552da5eaf03093b2674c8565ef7fa0a3b54bf39a7e09726d02528a93b3fb44fb9a0ea5eab6ad88480cd871b",
    "signer": "0xf780154eBdBB8D4aCF09B6dC777C1A460475D360",
    "userId": "613308197"
  }
}