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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01fb96a453e35cf860b40415aab95163d083fd0294ca87eb7bef0f21e254f436' 
  AND token = 'Zley6BmdcZ968hB6G31xy2yHyKZgzerCFJFTBj4DXZo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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