{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x922cb2ae695da9f7dd0e556954c23eeeb8bffe0e\"}",
    "nonce": "0xefa05c9dbc0e08d3c2427b1ef788c566e8949af07afb2a738f38287afccaa81f",
    "signature": "0x6ec38155011d80d9d69e2ec264a0ed78f8786b134726933ef75d318f0607b9a130e581b4f376155d50a749d2c10dd130b1d27dd435cae8bb70cbe80e3941edf71c",
    "signer": "0x2012899245C515fDdf505022820083C6F7da6b72",
    "userId": "973406716"
  }
}