{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "345130724",
    "entityType": "User",
    "nonce": "0x5137d12a9522db72124335ab5f5af936d61b14ea10254bf70be74d6068fe8930",
    "signature": "0x11bc5e52e4cd36ce6ffef044f50ecbf42f4508f7fe7ea8f9e5ef706baa1725c27c476213751859fe5889195bf6979e8bb116f4f498bee3ff433b6885d9b171431b",
    "signer": "0xE2B9c8ff29Da33Bb7C418796411d234eF0d46963",
    "userId": "269117825"
  }
}