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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '0d523d5a42d10f16d13fc6bbcf2afecab461217fff8615f2080b3883fa0422bb' 
  AND token = 'f7lqWJedCI05WkZ/djuGHNpaY1mQNoKmHZPvK1J33yo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00012

JSON explain

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