Sandbox

SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '4e7ec4f16bd01cfc89eb4166049e7092d43cc9165dfc575c4f09e49b891b1a82' 
  AND token = 'og9DVJNA5R4/oO/s2dyF13wRFP9lK7B8y/dHzByg8cE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00009

JSON explain

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