{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "462352719",
    "entityType": "User",
    "nonce": "0x74fedab1d7aff2907a78a814b10f25fea58580b718b08a315bde1efd8a0fc4d6",
    "signature": "0xa4e55406d23ed679c217bce9e19d79a76df9e8754c04893c073570d9d79e9e2b179d2b1512d31296e5edec0dddc73145c69eb8509b5b7edcbfcc0e9d9571b80c1c",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}