Sandbox

SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '032d231e17d8517da7ac598fbc9ab08060362d3daf933e6a71b965b5830f4804' 
  AND token = 'k8+u/X2WneHGCcGvApysm4qmkVkSTU7kESReqJQEsDY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00008

JSON explain

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