{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329869",
    "entityType": "User",
    "nonce": "0x722efa548db6ac45596ddd073645761b8b284030313bf48b7af2f5f958b542d9",
    "signature": "0x9e2bb6543fe609857d4591f57e5f26da1c8a416a10f79f27c91c762e3981d6733a8ca5b5d0697fab02f5d52ec3d41da25bda5c2c2d3aebbf497371cb1dfaf9e91c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}