{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49748",
    "entityType": "User",
    "nonce": "0xc8623645041d6a2e12d4f790582bb7aad1e8525a922f5c3d8b3bff27a89a325f",
    "signature": "0x8b5776191fa558cfb40332010fedc5f0b3703ec82ef2588c84dcd31902053c6f109e97c971c03e49c9761f3c815b01a6ad8385b20ca0824e4fb294d0e46d36381b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}