{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17148",
    "entityType": "User",
    "nonce": "0x8badc8a2e857330329676110e3f0d36fb14a2da4c8bed23d0b9fbe3d49efffe1",
    "signature": "0xd099c248b5509fa5b346e6e8039ecd77620eff5545dbf0407d91b928ffcae4fe59b772652a7dd027a1ce02d4eeae38b0e8bf34027830c1d17d2c35a5630a04691c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}