{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "369391511",
    "entityType": "User",
    "nonce": "0x77617bd38ab65124e0988bdbe8fe081c7b414e26f98c39bb69eed82a38bff507",
    "signature": "0x39efad290ede5c3b83c8b22fba941902ebef9e784b27b2ad1fe2af20f4794ac10d8a9e97a53a5c225b3b7b4b69bd034455f40798f5d2a63eceb37092a0ca54bc1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}