{
  "manageEntity": {
    "action": "Update",
    "entityId": "745070052",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4eafac3134532706676d82c32100adeb90007774880bf1accfb02df4714a98b5",
    "signature": "0x83c85965983199ecc46a3194e542091706a920136368a74cfbe474c3ee92f9f26f9867ba5bbfb3f64af0e41499faa46bb6c14f5952cdd1409050d5bfd5c7cdf01b",
    "signer": "0x0F2FFdA72e91b0F099a154B2451beaCa6E6230d4",
    "userId": "745070052"
  }
}