{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54545",
    "entityType": "User",
    "nonce": "0x1106d7113002a982260c5df920b8d479d0f164de7b558d71bf32fd195e5499a1",
    "signature": "0x09fd8f031222c56a17b7ece345df6bda931d64d914c8f1ce3d87bcb9583f4d764d808e14d9f7e3a64a80fc2b7742f3be5d661be450c0770ecbb8a539f87327e91b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}