Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '2c75a0e283052946955607c69250266716da9450db501c63a94399ba920e1adc' 
  AND token = 'uEsuCeWe/PVPGepJqSH4H5BsjOp9jQfnsCv6eKCnSVo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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