{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139746",
    "entityType": "User",
    "nonce": "0xb6fb64c73a801fe939018f966afc52f41806b93806bbd37600f18bd1732fc23f",
    "signature": "0xe6e6bb5bf256e39cc67a5e6877f737b1b41fa677903a852cb1a0d27359d191e57a9a10112751a08032c25c9ed8220561f6b49691b497b2f21b0ee2af116a758d1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}