Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0d94808f23c072cfcef0948cff222de16204b7a729bcc4383b2a14ad080691fb' 
  AND token = 'qp728xBioySVi8LAj8KrgNq5HG2Phg2pAL9yW9JA208=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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