{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0xaaccc623702f2f7d43815186c597e71e9bf89b9b1919b37e792e5c9fa865b666",
    "signature": "0xf31ae5d860b6d01c572e4edc04faaa7b38ce8774c480f75c439a9eecbd6ee4c9366f7c55862e8b0786901ce41fc57bc5532a6d2d69d0e57131b17577a20e17e61c",
    "signer": "0x8cdB16f6fb3536FB24Cb893e65EBb599b5D4fa73",
    "userId": "318299885"
  }
}