{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "458785967",
    "entityType": "User",
    "nonce": "0xd5be64c403137cffb5f77aa1dceecf0ceda11d51cbf01c1bc396716700a17564",
    "signature": "0x754d1d3b14cf779109f7c8ca65b34f42cc9cf77d3cfc52567df9ef77434144ff443057b1184678aae4fc0cfc0e2d810d01cf30d76fdf733a5f601b7deeb1073e1c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}