{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "401640408",
    "entityType": "User",
    "nonce": "0x48aa30034e0fcbde7c79e26ae16baa266473e6e07f5569ad9e8190d99d5c8e7e",
    "signature": "0xa02028fc323a4d346bf22b3a355b229f3cfaa2ab93c4341752de5a72c91fd01f0cb80c1706b46a0c8df864debb064098e8817048e6273da63f7e28a25585711b1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}