{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42617",
    "entityType": "User",
    "nonce": "0x1fb9e76196b5d696f35b332c03595a4101f64023351de4fc2fc6fb59a09d2849",
    "signature": "0xf7a9ae56ce74d213871500dd781f70f9fa301c4fa6ecf13d95845b6c803d948101c42ffb5e2722dbe4a4d44e249f5554cbf29684f6df1179213bcd74954ead121c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}