{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136804836",
    "entityType": "User",
    "nonce": "0x4a692392f17eb3c25998d68064768c7b0dfecb8497e28eb72b28b54272b1d020",
    "signature": "0x88c5557f3e00e5c0756ff12ccca6559a1c30fdadd2501e9ad85894125f3e600435fc118f2993229d2ae41430da4d121f0d8ddf29f7a0e74638787038bca6f0a91c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}