{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "857826100",
    "entityType": "User",
    "nonce": "0x24d91d15ae24659c27dbfbb72ee3e46a1b0958c2aceeabc67b5354c23461e96d",
    "signature": "0xa9ee28f353af36ec0051e4bd47d5037b7072e68cbb4f35edebc3925546768beb159198c42d0dcb3c745be3e1729eed5ece3e5e5bb55a281b19bf3b553b31f0061c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}