{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125856948",
    "entityType": "User",
    "nonce": "0x9f9b7a5917ae86c01af6bc24ff5f2396434cd3e7313e94652681d8f532cfc329",
    "signature": "0x18f9815fad77d37d782e46e1146b01f0649e3f3e1454de1f7ba88f2712b8287931137f1cd0f2e551438aac571bb78ebcb1ac119151e59b25f63b85b8bd42e4441b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}