Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8a7096dee2f955612ea38258ce191a380b46cb03ba2914064db82591caa0b0c1' 
  AND token = 'iqEsTrB9W/wSIRPSmTnIkV1yTy9DKfHBNL+fK+lV2NU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00012

JSON explain

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