{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "888232211",
    "entityType": "User",
    "nonce": "0x80d531b199cb08a115d19b0aa255b6a8b800dc0f046c588a734858e63199f67f",
    "signature": "0x2df5bdf42e7d3aa6723dca828ad09acb52de9a959be3fe01957caec2f487dc9f4782507350794f6441a8d8e45f4368a42f91223bce8ee3b7c821c2081800eaf91b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}