{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "252272",
    "entityType": "User",
    "nonce": "0x4029a052588aee926a627a4f51688d2c54b40e5d8357c23cfa839bb339baba87",
    "signature": "0x5dc2a511e150e5bd7de198a04f7d1b7f7c2dd5fa9be427182928f2048ae2d3fd581e550585d2ce4aafa83b0140e2eaf00fc9f78f68213784996788eccd825d871b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}