{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71109",
    "entityType": "User",
    "nonce": "0x9b2f6f76e5db1ffa5b1c364d1cbc45f34a2bc25e22ee34e9cd90a5ebfec2e355",
    "signature": "0xe4afa9d0d3b3bb69667e3bb3be547991f6133e2faadc799c6845088472549b933bab19cdc3092e05a51f3ce56a6ad0ae370c14d2d1c4a10ba36e5b6f927d4e2c1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}