{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "159385",
    "entityType": "User",
    "nonce": "0x9875c5a05855862735bb08195236cbfce84546afb0a0b13fbc183108ff20cda6",
    "signature": "0x0daf036e362f8ec4759bc5d6dc6a7e9577270d1def9c43e0d4f08eba95965776385e636921ede6c5bbbf64ccb8ef41a006c6ed3ed5fb46fc8c248155ccd3d5e51b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}