{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0xb8f4a1e26993699198cc7ef202700027b3d325245a788f03bc2970d6b4fdd3c9",
    "signature": "0xa5169f7ef9e157d44b2be6c00f51b94d8ba9829c6436a32dbca1da0f1004754268b46106119afb1499078fe579fd6cebbbace2c1b6328e2151f1fb17bbaa426c1b",
    "signer": "0xBa39a1B9C2A30Ab1FAfa33cF54BF03e443abad57",
    "userId": "348773042"
  }
}