{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1139109",
    "entityType": "User",
    "nonce": "0x0a33f35739535f52222f5086c5488828b9de0ef189f8b1d3a5beca24d0b1c48f",
    "signature": "0x8bb38faa2b0048f39737a5962e2fe0c222b537bd5f7ff519ce656b1b03251d0427453a09edf8cb1a59f4553233d11cb0c7a7aabd31a46e3a1ccbfed2aef5de411b",
    "signer": "0x745895918A1926af8a7B4C34Af51BdF98bf5C7C8",
    "userId": "54958731"
  }
}