{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0xe7ae183610f8484037010ad588a8f65920b8b171ca0171c01343bde5415f2b73",
    "signature": "0x265d4bdb62b7d1bf17781a3f88fe7fe6a6907d026232b914fda89597d40c6ac21d039fbcdedabbe5ff8eeaf6cdccef0c702cf2e302843873544a82679c60cc731c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}