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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '22b067055558ec47b808f529f9e4d6deec54ed0a465b18f5e1d845076690b957' 
  AND token = 'iK+x/R1cSV9i/0jHD1RKyJV3sT1k+Sdsi+5Wk3i2qjM=' 
  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"
    }
  }
}