{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "456716469",
    "entityType": "User",
    "nonce": "0xc086a9082c979e790c6da0201f5fd2d8a253930cdaa6780900c0f96e82c04761",
    "signature": "0x91303962694420c6c7956d348afc79fc27c1959aad960126572dddd5d9376887282477d6f08d122d1f0660234171abc7d25a428ba53d07ed62f2fe96fe13d7c71c",
    "signer": "0x18e80443A33c763307bac21D4Ec54B381DFC58cA",
    "userId": "964025330"
  }
}