{
  "manageEntity": {
    "action": "Update",
    "entityId": "789613939",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x15a9175cd486bd3f1a5d3c1e670f94a9dd78e99124627496ff411df6f2a5c2dd",
    "signature": "0x1d073b9ad187875a7d0e56de306d5988857a88f33a49fc37cfab461c14a39ba33aa850a92b9abcebb7883262eb8fb4cbc0bcede1175e89fbab6096d65be6c71b1b",
    "signer": "0x3C1F167C8C60734E1063EFc09A11A2CD0BaEF416",
    "userId": "789613939"
  }
}