{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "498622602",
    "entityType": "User",
    "nonce": "0x480179e47136a739e5b8300cb739e83dc851f96c48977f3ab246f87c70dd7f7d",
    "signature": "0xd501722926b9275f5acdf4af0aff8d3fda63aeebebed2a1de7ec9fd5ec180a037293ab1765b80ba16ee74057ed193f0a684a9b9e330eb6b4d59de228244a395a1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}