Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4222ca95590b0ed56f0ec965540d193b9e68724a663d5cf0ad98760489640881' 
  AND token = 'PCHyWsmqYLQQVUx3vyuMRe5wDoGpbB8xeaG5A9V4fSg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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