{
  "manageEntity": {
    "action": "Update",
    "entityId": "778114308",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xccec73c9245c8366df750decd540cae73cdfad1b1c55a9dec82bcc21c327b2d0",
    "signature": "0xcfeea862c3f3cdf4f9c7f994366b6df6704d620b65b603496872f1755616ad1402875c822d150c533ef851970df7221e659226e9582f6b9de3431f44fa0f098f1c",
    "signer": "0xCd8044d3d425f124B0F430AF6fdE6671FEb03D54",
    "userId": "778114308"
  }
}