{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66710",
    "entityType": "User",
    "nonce": "0x7b20aec24eb18b66b4dca4135eded5b83b679e91eca7e5cdcc73bba262d4b271",
    "signature": "0x33029a8156afeef2f107e42e557d81e1631e2a981d192bc638b15f632c0f74bd6d2c5594d3df5490a6fef149b16a909ac8e0169fb2fb449cdc681dcac17444c91c",
    "signer": "0x4e636627B2C38e64C8D3aF5889767393B4fE6C1A",
    "userId": "181"
  }
}