{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "847467862",
    "entityType": "User",
    "nonce": "0x587d10856d6d494d61020f178264e9f432fac7aa4865a24d11482c0aaaf1f693",
    "signature": "0x7a72207177f3ab634ce3cb5747b504497fdccbde8326cfe2d61be8414479a12074368e19f6a461d48f650c8d9ad77bfe37d416506d6f6b8eb4f0cd9a0e26bbd71b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}