Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '29ac8aa1db9a847b796e139c720bfa825c039fa8dac23c3c14e860cf10b2797b' 
  AND token = 'yZ4hKyTLHiiOp4FKfKzpi990ysI1gKK058Qd+ftAsc8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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