{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632950658",
    "entityType": "User",
    "nonce": "0xdec8afe0d03619237ee21d8ea0d3cda336c340ece950574a09c9d24d57b83510",
    "signature": "0x62079d7aac248587c49261d2552a327e2154a7da08fcda48d708e7f5dbd097e25e29b0e9bb7a72dfe4b1f74b6eb373795be7869749b86386e2554fbf06290ee81c",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}