{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871929900",
    "entityType": "User",
    "nonce": "0x58b3976416c15441aa2b67d3954218a2824dabaecb4cbf5d4c0dc797a5ac4ea6",
    "signature": "0xfb8af42c02b6c38be418f24d9aded0074ed89d8aeac642af3bb0e57ac16e7c74579591f04430806eeb410c7a2e4de6094cd90d956a0646bfe916b0b58f6725f11c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}