{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10857",
    "entityType": "User",
    "nonce": "0x523546a033e857165a79053f47952df7e19b58980634842b005276fa440d8c83",
    "signature": "0x5aee0ccde1d8648324fd9266adef6dd325e8abc570cffcf40b88dfecc64efef161d21a891abb3624376bef7c6835b654b80041b88e59c350ec9f9702c04ade1c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}