{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "779012302",
    "entityType": "User",
    "nonce": "0xe5259f0a02828419a8c4c76bae32fe1c7de2727d3fbf0bbbcbb02319dc68fcc4",
    "signature": "0x3bdf08eca515867c5d5a6527a4ab810771b7cf170321d4c19af25b3223594ecf0e60f6e8452794eaebb30e8765409db768a372097466be2e3df5a026b227768c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}