{
  "manageEntity": {
    "action": "Update",
    "entityId": "708281325",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7548ebdbc4f0d2508dc35547725dfb26692119c9818ae14f2222c1c29d7dd2ec",
    "signature": "0x59284c777aed2e33f3f31aab4bf95a23cfe4cd0dd8af71c3673d259ac813235636a94f7fc553aaa6f2f38ce642ad7786310ec3abd8707d80e2bdd1448134f3531c",
    "signer": "0x95039C5e9fA958bCe7C8bD76e20eb23F4E531e54",
    "userId": "708281325"
  }
}