Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b3307b945a912aff5a8ee570823b1535b372336c6461e081f5aa2aaa941e533d' 
  AND token = 'whAn40BtxDtk/X4wcODnEceGmV5TRT7LlA0oPDiWAVU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}