{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65268",
    "entityType": "User",
    "nonce": "0x128af087d1f75746dab3b6888c7a18292fc7d5deb059a421b14552dbdcb670b2",
    "signature": "0x502b2aa0b3c44d0fb13e3c7d4e61a667c0a52d50193dae57b43c9802f8d1541e67b5cb4e410894e53067add3adf8f3d36072fdd3b5e6ed7aea5ff93627117a371c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}