{
  "manageEntity": {
    "action": "Update",
    "entityId": "264649929",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x574cc5b70cf17784a336c0e68b288a2ae31bff3d46683cd730dc535be990d363",
    "signature": "0x8d3870c6e6d40254084d17fdeb1c6db4997a6b5155a767c298bcfcda06a17fba3783b2d7bc13465dd9cb93f0bc1b800660e773a98400e81f934c30781cdcfc1f1b",
    "signer": "0xE8e88AADd62e0c8385d7fC40418eF1c15BBF5916",
    "userId": "264649929"
  }
}