Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '20d93d924dc9407c8ffc66bbc89c49309053939ee7de64cb434507eb4fff4c01' 
  AND token = 'wx0Gaut7HBo39J5ZFSD0xZakR5Hnl91iHIj/RGf66SE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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