Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0b7df68353ebcca941b38902afb51608dd70b7ae5a2263f65f17bbc223067e1a' 
  AND token = 'cC0+kcMzbEwa8y0VtHk/3LsPMQDpLInDOcXvH4vfjYI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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