{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc1aa41198377d18c80145dbedbd31a270cd4b969ccaa83272816739f049c1b88",
    "signature": "0xcf1a810e061b7e57a547950144616791f9715b31bd48e29d745e3f4708f0ec401cbadd13f1a3b18e0dcb9a140ce690c78f0c616d835fde6590380be8b133c0951c",
    "signer": "0xC6e4e25195d6b990E37f118FDAb0C8D1d5248688",
    "userId": "889476491"
  }
}