{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x0b8143cc74b1537935f693b512170da17ba4343585515080565a95208b3008c5",
    "signature": "0xf6df977cd3e0f8107f5120c05ce479a456181718813b91204e1795b8fe2d40b57cb923f0fe1a480403ad7d793ad31225efd390a4b5475f86599f556cfba317901c",
    "signer": "0x0E1419Aff1544Dde5c4eebbCfA208Df83ACdE40A",
    "userId": "564626302"
  }
}