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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '3057cf90b0db3f91e50e84cf33100a8fbdd96de2045c5e77301c8050207f0e95' 
  AND token = 'PoNpwGYtFwMMoYxhE2C0jvT4HI2+hdzRDpN04Z0V7/c=' 
  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"
    }
  }
}