{
  "manageEntity": {
    "action": "Update",
    "entityId": "843354686",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x91b5baee2e5a0844839f031c5eaa7f0d9b891f8024b7d65d6b11aa3ce6731825",
    "signature": "0x1701f478bdc0d819326ab803e6feef2ee910fc98e04ed2a523ee5978fa8f4e024764186307e9e5ea877efc87bb71417777340b45ecc3945aae5f1d2b93816b6c1c",
    "signer": "0x3cea819853Bf20Cdd8f10b27ed0911741D96289c",
    "userId": "843354686"
  }
}