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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '0075a7859285c312915a431d84a6ed687fda15ece0a31afbc0dc17ff3ed82aad' 
  AND token = 'wgpoXNgRjPayV9P3eLvNQ7WxAykNwsvVkMd+hEg1V+A=' 
  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"
    }
  }
}