Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'fb4275f47608c982496c225f30689badd364d5106e47fce9d871775e536cbe14' 
  AND token = 'OWygaqerivyaTA4+igfT/5S1pUGkmknDKfhyO7I2kms=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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