{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "149059523",
    "entityType": "User",
    "nonce": "0xf6a50b9f8568d814ce2f221343fae2073e2bdfe231670efb0f31f6104d9b4125",
    "signature": "0x0612262a287883c7985fbfd236f246f7234a8fcbe81d15ffd57aa0b052c51d256fe4948dd21e88ef389dcb8db112764258323c9adb785894af24c9b6a069aa311b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}