{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xf45cbc0eb779d3ea977509a14da965d1f7360b0004397bccf1c336b4e7b83d40",
    "signature": "0xcc6d12347dc561d37acf6d04bb0c513e7c0e178ace5cbf32578db0d9b06db6d4610e4b6a0ae8095b49b30dda817cc88428e4cd719d99061706139b21d736cd971b",
    "signer": "0x406fd2b6f6C6cC5622Ac1c5799cE4911D81e02a7",
    "userId": "461949730"
  }
}