Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '572504e54986e7378f30f79b273a3695e9d662409cfc7ad1b7f7fe71d0be0cf2' 
  AND token = 'cN7m+q/Jeg3GWHAkTZg4WfL+62ps15vLEvSjNOEw3go=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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