{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "170302",
    "entityType": "User",
    "nonce": "0x1c1a583ec8890e1ede2cfd44b8a3f7ece5a3d4f0aefa1e2fd260029af4b67be1",
    "signature": "0x0e7048cdce7945bfc22a6ed5a9484e1af4c28860236a50af620e90b20a3167273df85ebed5f50a3d4c4b423eaa5d7ed8ab7e0599fc5b75244175949eb650bd521b",
    "signer": "0x745895918A1926af8a7B4C34Af51BdF98bf5C7C8",
    "userId": "54958731"
  }
}