{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357771",
    "entityType": "User",
    "nonce": "0xcd2cac52d95ae9d861c2770fde57866e99274b99f92d75ba713cd4c81fea32c3",
    "signature": "0x94ee1426f4d716794e219e6dce96aa758b469287e9d5f4c06845b7679ddad19704a15bef2d919d8b1bec9ccccd876105389dfc9f4a59f4958ec69fa211348d391c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}