{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "941926592",
    "entityType": "User",
    "nonce": "0x639d02a6c44a3bb5bb40ffa74ce02c44f906402c35a5757b0978b526143637e7",
    "signature": "0x49f979b527a72343828cea278dfeff33e3412cc1cf031e82cb334a238f39d3da16960286a1a0bd3b65e072e64b0b8e7e7d494004c58b1d6f784eca787f9e90ce1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}