{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "709077025",
    "entityType": "User",
    "nonce": "0x75190cd1b5660e0774aef0739c6d46f61f5de8cba9edd8caf2f1174a72c265d8",
    "signature": "0x16ee7951fd15a5815134856da1583258ff51b62640a0021e3b78ab31149c9ad42faff4b44c250ccf305153f60de08b412c02ddaff23067469710060ed4b0ea5e1b",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}