Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e965fda6c320060ec2e6f8dee5da69201f9eb8d19e651b197d28629747880f39' 
  AND token = 'XdUmiWTrUdcXMj5ovRYpLDuWugf7NBgOEkjcH4zS0h0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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