{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707937",
    "entityType": "User",
    "nonce": "0xce40be288df363b7012e6f9fce8e1d37228e17f3e32641696c35c0a5a02962b4",
    "signature": "0x6c3757df46ab0a23e224e84fcca4f25b1665231386e0f1679a5f71c516490dc1600bc30dc27856dfe36d05ab639ce9af605ef0bcd6670929e6ab1ffbee9a38301c",
    "signer": "0x4993C3631eecd6e8c1635351A99C2103C7d6Be4b",
    "userId": "906184213"
  }
}