{
  "manageEntity": {
    "action": "Update",
    "entityId": "744806110",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xff448c480490ed9331e514e30d1630e952afde282b01d3349d6c11f9dbfdcc6a",
    "signature": "0xfcb75f148799276e73cc580e5f25bac3134bec3483292c23505efac8976ef6996638499805ae04a7634812c2c47b616938e389f4bc6015085eafb37ec3272ead1b",
    "signer": "0xe3CB71b751f74f3D722bD4380d6Eed12dF2c7289",
    "userId": "744806110"
  }
}