Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b78e556edbf2c9bb4c973244418c7dd61decc6df864b512e15f84e76371739b6' 
  AND token = 'GapcrDgnx2oe6je02cC93J2G1I2gNVJIJRcIW+YDD8I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00052

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}