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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '013c01b5b7e3104ff9a2141e46e8771b7a3c42b1f05a14bb92d2d54f9166f7f6' 
  AND token = 'U08emM01jm0UiD8eTfvqWo4ur+4sJA8stMU1xlUFhb0=' 
  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"
    }
  }
}