{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64965",
    "entityType": "User",
    "nonce": "0x346229296f35538dd29c3c88f86f307aa312486e0d16b9c80cd07a49d655ec8e",
    "signature": "0xdd85b4b712524edf368b5f49b8e3e1c7066aa18a73f6527662fa31f2e5ac17d201c7ac17ba0ddb13c853052f5d61023b764d85b4a1dafa1bb6f68369476aba241c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}