Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd46eb04d71a36e862ac3e25c5ecdbc9c3f201df1f0253b0111a89012aa4c530e' 
  AND token = '4X/ooyDLKid/nuMGYIIUv9U2X2bCcCblutwRj8Y+jqk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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