{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56771",
    "entityType": "User",
    "nonce": "0x9df399a061dc209141cee3fbf3fae838d5e7951f1de9fc2385d76e66f6a5ff97",
    "signature": "0xe216c55a3b538a51ce008eaccdf2459ba33ed6173add2b7d7539d93c1ac10efb7ed834137a323a4bd72c25c3c6974ec40bce9fd0ace2cca6d58911efbaaf1fae1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}