{
  "manageEntity": {
    "action": "Update",
    "entityId": "230937295",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierab53zdnld3g5ai7w6e3v2el67xpvn6567ti3oc7hsg52eny5rkrcq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2003553302}]}}}",
    "nonce": "0x5c2d59fbd00a3f2df99f71f9f659a3ba487f44fb7c0be2091bc506b3ef96b107",
    "signature": "0x2123ca00012a8fcdcc3eca6f1cf03e37fecebcfdfeb7b7080c9a12c90d5193bc620a26fa8f3231a93ac34305ae73d0af7cf51b33599a046eaaf3dd34bcff909a1c",
    "signer": "0x4859cb73a2827537B204400dA4826114041Ea722",
    "userId": "230937295"
  }
}