{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6d76c4a59f16eb13b65c6d119cc38eb17c547ca888486730aa1b34642f04f806",
    "signature": "0xbb68b6b251c155e34e50e163578ef1b9ada3c9c05bc8812cd84afaa1023c3c8c299cbc8d885eaac8f1ddb9afb58c83c38f1ff26b9ef924b03b7f2b7c80377b101c",
    "signer": "0x05255749FaFceDA44388E2AB9F40Add18F7e0603",
    "userId": "519609502"
  }
}