{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0x3e4584f378d6fbccffa554e03308e9dbee35fa828d0964dbdbdab4744c1ca1c2",
    "signature": "0xf0cf279e97d85a07547705a6d4177f55bb63937929822980e50480f1e3561f302ff4dcc3a0d2319b15c96b2f74a07fd48c6467472ee29048766dc106bb988c631c",
    "signer": "0xE20AaE68A689771D32560063F42A4e08959AD4B0",
    "userId": "472945373"
  }
}