Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4bb9f777020fd6bfe7a1355326fbac43435d98e84b728996ad9eee6b813dcc9a' 
  AND token = 'l/t2qGRel+i2xtZc78ERNvUVCoYPuSG2Kfyxrx7y75k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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