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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '09c722ece4419c0d4a09271df6a0ce268cbb6ce3b562a3ab0f2e8b814a274f33' 
  AND token = 'tv1wA0kyD8kbIWezo0OBNxP4wsarpUGr6YE2DrU0yy4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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