{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120405",
    "entityType": "User",
    "nonce": "0x62e961afbe286d0e83e05eadd620324b48dee1f3e407e2b1c8d047549111e9f2",
    "signature": "0xf31c93f29f590598a6cc0d07713558c591e8bdb328ad3b3e2806a3d08e9d5f5f4a89829cae37829d0bddbd83d1fc54171a810cfe21f5e3343fc31b45f57b27761c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}