{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63649",
    "entityType": "User",
    "nonce": "0x48944030c0f5516f0c83dbf2ec153611e456acecd1491e766bee293430ba1b0f",
    "signature": "0xc481e3bae917d3adf24ddb8db95e738859d69331c2301c46f400e888ea5520a239887c34fc713903af12ba3a63261f223759314575902f99f3f30ec884d73ceb1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}