{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2595",
    "entityType": "User",
    "nonce": "0x90b123c82c871663a201bd1bc26c44d2ec2045036d5c4b73aaaf3b6feb803f54",
    "signature": "0x8fd274c69567cd01f720c6adcc5ab14d28891e454e645343ab3d471bb4794ffe25d044d99db0309f7e7c5d923e60f25625db9a03e6abc2d664554062bcd2f1441b",
    "signer": "0xb001DCb64Bf57b3EcC76C4Fe5AbfE2a8B084D6ba",
    "userId": "641557420"
  }
}