Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'a97580e41b74cffb7e1d84ce3377e282f6886fcc88b0c2fbcf1c24f19f50b959' 
  AND token = 'Nojadq5CHwzidydd0RQjQpsD8y94XXii5Nyzno4FQOM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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