{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6d6c3716a8e63fcfd05d9b531b757900660c63183b0de586d53830ca2a7ebbc0",
    "signature": "0x889c770aec8b474865ab6b76cc24900ae6a7d3edbdd1b6fc08b4de1c16ad90cb37146d1a7071aecaf587cbc02cbf708cd5906565c0b548062972d0d2a993f5eb1c",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}