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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'd31802829b16f8f0911566e5298342d8feff892f9f0c9d15ba7b0ab0f4dc9772' 
  AND token = 'hSSu50uq8YeL46thlEzkmSdyQyte/zOwSOflBu1VqBc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00011

JSON explain

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