{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707342168",
    "entityType": "User",
    "nonce": "0x4d5158e169b70165220c913520c8b843b1b12692341f0f14dfdc3f83a40ff4ba",
    "signature": "0xa3be993c29877f13c465a4285cc0f8024f649d000f6e8e46992ffc00ba66fd4e17a19f7a03396e3c7e06aae950e51cace202653f96f25554dd309bcfb3846eac1c",
    "signer": "0x7B9cA725212Fb1aAc5862a367CD35081a959469C",
    "userId": "870788743"
  }
}