{
  "manageEntity": {
    "action": "Update",
    "entityId": "868091040",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc26745659dd04fef7cff8f1c252867ef086edc82e6e1a27cd6cb2c2b478c5520",
    "signature": "0xa3fc6b54fbb823e077510f8b3f4b1f25a5df9683112df129101e415ae1ef3e6a7690e1b39348522f2bb5f21eeeb6df176a8c7ab9696f32d0593115b4d63583691c",
    "signer": "0xb99f008ffd166649F28b127d6e721f6989896e7e",
    "userId": "868091040"
  }
}