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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '65c2dc65bb12eff2fbe8cb3a0e25424df7d37f0d7e2037ce7401c197cb185aeb' 
  AND token = 'le2THiWTJIs0mz+l9Hr9ZuF0yogHzUaBM2M3ahr5nuU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00011

JSON explain

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