Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '74190c2c7266a4199e1742e2ccfac04aa699a70997f136c7ed96771984b4216e' 
  AND token = '9yxsW9MwFsy7JEsJNkopcxwNEfSeSKk9l8PMz4bu4m8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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