{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "990579",
    "entityType": "User",
    "nonce": "0xdf3f9780d3a4534c5231b90cbb91c3ca21285a635aaf95d7e4c1576778611e26",
    "signature": "0x1f583fab1d4e6760f11f4ceb8ee9d45446681f56911ec1291270ee68ebb6ac0a1422cfbc6630bc8534db168ba83ef7d4a04ee4dfa490566219f79c4f49d77fe61b",
    "signer": "0xd85E4A094e4C057572A9D525C9737051A17ab609",
    "userId": "696716320"
  }
}