{
  "manageEntity": {
    "action": "Update",
    "entityId": "834540087",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x02c1a939302f8c4d48b4f64d0c003fcbc583d099e856bc0ae5e212acd3411d4d",
    "signature": "0x30d246ca38a6207d993751321a4439e2d05b2be3b691d9c28f577999662f736e07b349808c7f5ff3f30cfc245c31c7bcd19b86bdde5a4bcccca53473638eeb411c",
    "signer": "0xF0CaA5581Af6ee80150b5aA4643d1069EC176dB6",
    "userId": "834540087"
  }
}