{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "442869",
    "entityType": "User",
    "nonce": "0x2cf594c23e8be6e3ec27c0b97032d58761ae9b43b43961a18dbd8d50c4b7f78b",
    "signature": "0xa9877116f5b212c03870f5055766a46bdce1fbb30c826bb5a6c472dcefbaad902a792e2f87514ce5f573fdc0aed98054f73b6d87e0bce59c4972076d7f7c51931c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}