SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'aade83b55de927eb2c7394a6e3f2c11f989abb097cd86da0fd21985d09ad2b73' 
  AND token = 'g+O1rdZV3PnGd2iLj2njIl/YBTInP+Bh86jbW1qZxdo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00010

JSON explain

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