{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6696446",
    "entityType": "User",
    "nonce": "0x8328a9578d97ca6ed7f5ee80fb55ca0332c9fb5d8ffe8ceea3df9b31707d3cd6",
    "signature": "0xd0a1eae2f3c4eba5459ee3a17e14eec89ae83c132bddf33a5fd40da38dc626733aa18fb7e57ad3fdcdd8188acccef9f4671235962cc9351ac175f0b0bf8f50531b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}