{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358358204",
    "entityType": "User",
    "nonce": "0x0ec4b5c9c8fb74e2b7fae9546015cdd6cdb69f4cf79e90cb3946fd059795cfd6",
    "signature": "0x470b483b321aeb645ff07e0efa289bbc1a5b288f2250ec1877c012a6639ab0be3ac0a1394e3a13a2cbf0ddf62b47d3449dfb45f03147563e7f404d34498668fc1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}