{
  "manageEntity": {
    "action": "Update",
    "entityId": "167465000",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraboxe6mvlup365jj3goeqwac6tgesr7eh7fztomywmensf6u3trja\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1377501093}]}}}",
    "nonce": "0x1665880805a8246d90f41551235f749152c68dd7a1889741bb59cc8235c4df2c",
    "signature": "0x1ca601d22262d0bff29c7adee08fc3c63c0fd6f471c547a919a068fd8ff646af22c562b7f308daf5a45ddcbd3c7d19b2ab260efb12c59a86efe3fff1cb801db61c",
    "signer": "0x82199BEBE1D1987EAF51Bef8924B10c8Ab6F41cE",
    "userId": "167465000"
  }
}