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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '247f7fc70ae6e3fcae5781588671d3845897c940a67602a9942aa116d04adb82' 
  AND token = 'M/PgRFdhNfeiZ8sYjjQgLUaFcN/bB0omFn8WpF7ybHU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00008

JSON explain

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