{
  "manageEntity": {
    "action": "Update",
    "entityId": "116978111",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7i2fccanvrf2lrdgle4rjsytajh4quucabtm7hsv7ghlhv5otnia\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1000284491},{\"type\":\"playlist\",\"playlist_id\":722988573}]}}}",
    "nonce": "0x802b6ea78c7c878d6710a8755e26dbeda790ac09d3bbe44adff078906040a1dc",
    "signature": "0xda173e0340a34d8f1d80fcf20b6bc288393bd973023bd3717cd677bdf778716c559683d6d575203e1175b9ea1ea1827390f355ae08b738b3da298c1f8d5768de1b",
    "signer": "0x7df9000193ae455e1936357F695111eEC59995b5",
    "userId": "116978111"
  }
}