{
  "manageEntity": {
    "action": "Update",
    "entityId": "635508657",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierabsjpezl324u4cy3hsccdx6m2tcpi5h6cu35vzm4o526rv74zfx6a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1361348202}]}}}",
    "nonce": "0x9f0dff127a03fc97d0bf251c220f5b93b10268774e9037cd16d504ab9c03efd7",
    "signature": "0xa127f30223fb752c67cd88cdc0988de4ff48cc43019495ca281713bb28e97f743d8b2f8dc7e11fbfefd690639c3a586583b6149c705c9137c2a07d1c25d91a541b",
    "signer": "0x5642523A896f5Abe636541e24da44F54ab8E9790",
    "userId": "635508657"
  }
}