{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "369903468",
    "entityType": "User",
    "nonce": "0x180c89540b424082202850e0b29b2c5c4dcdd0dac76ae1d79efda2e0eef203de",
    "signature": "0x7962b013ec82c597147af4deff08f9b6397e541537e66a10938110e099f556a8301af30377a8a7f7f8416a0ad4b5cc56d1b648b177fe0605206aba35b9b09b461c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}