{
  "manageEntity": {
    "action": "Update",
    "entityId": "116978111",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierancd2ayai4hmjlm5jeyxuhovees3uykt7m2mepcfaka5cgtqwbc2a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1000284491}]}}}",
    "nonce": "0xc4ec9056b21b7f1f557b63990145f8a657a0fa128dd3f05eaa69d994ac1472b5",
    "signature": "0xa184db0130cb9b721a569f12ce08a40858264fa6a56668f4ece82ce91500612c0dc35eede79e3088e6b76bebfb89082a2dd7e00d17a3ead5ea639c6717becf491b",
    "signer": "0x7df9000193ae455e1936357F695111eEC59995b5",
    "userId": "116978111"
  }
}