{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124033700",
    "entityType": "User",
    "nonce": "0xeb3a46557012ca476ff50732ed8a79ac8e758db2a58cfbb30218abf75aa641a2",
    "signature": "0x02403db3daa5787781aa00b7d8a0aa3b0800d3394c0194cf41d3fb88c4d7d61f46a85ea6e4a01d8e3131d06b62ac987a2935525ec7d9b4ee4a10294e633a34b51c",
    "signer": "0x67E321241D4e44e5aB5D1c365505f0F33044C7BE",
    "userId": "460631539"
  }
}