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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '0ae1567c66f018cb4f8180eb60b64cc5ab8ec26c92e674d663e61a80a5ee5170' 
  AND token = 'X5gUFw7AdAL2wdQ5uEd5ycrT3mUklSTz9JUc2w6ZDv4=' 
  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"
    }
  }
}