{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "419595",
    "entityType": "User",
    "nonce": "0xac4ff78d77eb122e7af93f3af464406e61cea4daa7032e7add01f07bd8f0ad15",
    "signature": "0x08455e18a302c1d974c717966deb204d3df789c7f1b877bcfda47bcceb39451378ec78410e88385e8f7aa31cf26bede9769da6360993d17410550f72318cb43d1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}