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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'db1d8bfb36e89ff1d5079e5f9d6044b279f0b79762ee48e9c3164a7e24acbd1d' 
  AND token = 'aLy7poEqA9BBOGJQwJ9fXiJYtbbT6P0HA9WWP5q+QRY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

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