{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb7c1d68cc7497b3b65a9f15285caf6acb1a7c159d37fe5a0834bd6a86eeb9f3e",
    "signature": "0x9b89e07789d0ded55efa16fb287aaa36589f52e45ffd023cd45f10b6fae06b9b2d7617bdb8b85f32d0fad9060c927b327610a89243db9d99ad19cc9eed1d241c1c",
    "signer": "0x4142D118712C92a97A9389e44E053F06AC1aaaCd",
    "userId": "179224645"
  }
}