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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '432285511804fcecc23a8ac1827def7b4a3140f0c3b14c3662d7b2873f40024f' 
  AND token = 'rLSuuZ3rqdji0k4B8Mgfzlw9H9AfFxGGsNxV8pLucaw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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