{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854498636",
    "entityType": "User",
    "nonce": "0x3f4806fa4e7e699d20ff965b56daf6364ea494ef58c5bc9f3a75cdf4b789875a",
    "signature": "0xc38d8d62cd02b719237e58f16acaa35e35190352ea62debb501cd6ad2f3e8c9f69a3a3ddc5be8c4bc3eb0ae0aad60aba0dc9b4e496e43a13ae18d0de103275ee1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}