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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9c43868b3fb62b24d376e767036c0d5491d6f94cec00109cbc53b4c9ce06e62f' 
  AND token = 'Vj+5ZPvAJUn7oNE6OrjfL6jwxibuRACcpD9+cOqHVOA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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