{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x357dfa8971c8efb65044f769f32a0b89b762e4c44209ae0373735b285b63ea25",
    "signature": "0x1050730170dc5cab23675974685135cd641ff96c65ca5ddd802b59b7bd2f433d248cb7a62107fd425640510f858c86bf4e3476efd5c3436310a7f3eec10a3acd1b",
    "signer": "0xb9d49A9D4E637B8aAb9bBEE6b60cf76c0c7884B8",
    "userId": "532466263"
  }
}