Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '85961c49af135617953a0335133bc5178218eb181574eb60518d1704aac46be7' 
  AND token = 'R3fygJUTEt+T43EWyQK41uBsun6FYq++h35pCC6aiVU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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