{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1640466",
    "entityType": "User",
    "nonce": "0x99a7451af1997f860479d48434b72905652e95aed4976ba8ed7ad9c4579416b6",
    "signature": "0xecf478587c503166da19d100becc386605bad49abd3d0d01cf6f8a344eeb17a302f3824153a7e887a475cd40172083882f62b656808c9cb74ecdf8030af67c601b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}