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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '361a25c9bdee82ff03de9f2f690d7a968d57ce662d7cd9e75c696c450eae37fc' 
  AND token = '1Nh/a18JNs0vzsT1TbUgXy64B6dnYVDAr+QOkkIvP24=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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