{
  "manageEntity": {
    "action": "Update",
    "entityId": "116978111",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera3rff6gd6vp2uvsdqwqlmit4244afkbmzz7zbb3he2hbi6qgxxlxa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1000284491},{\"type\":\"playlist\",\"playlist_id\":588860982}]}}}",
    "nonce": "0xc5b0ff03befdb7906b3202aa7ec9a95f8f10a970ea040e6d1c69b48941b67b2f",
    "signature": "0xb6a3db203eaf7780a001fb87b8f2d112138060aa6eea4ad1112c1753e1f40e322c92f393cc9a74beead4e5b4443d8d15b5c334b54ccfefd31c9859ba57547d9a1b",
    "signer": "0x7df9000193ae455e1936357F695111eEC59995b5",
    "userId": "116978111"
  }
}