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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '05f7ed0017dc7a2e8cd8fa16e11537227679cd369b4dfb27066758be192ff539' 
  AND token = 'RxiX8H3bssT9R6Ctb76ullII73VAeWvHVHq0TIbDURw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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