Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5c385084355dc92475a627f0e96f57fdc65b52b504b9946ed2d581bc121571cb' 
  AND token = 'blhbE5R0ecuFEEiozj/s4kwF1vQh1Ah+I64a03E2U10=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}