{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0xb3be2214b09920f64c4600f22a0e7aba81748768872c2d92b35fc7477bb34cec",
    "signature": "0x6db7aab724a7145ac8d14d7722778ae0643ea8ef6baa90e64c7a5d618c94a23e23733db73dc1f2267909728a01cb2c00b5d2cbdc0ddfd53470c3a169a6afb0a71b",
    "signer": "0x79B528C352D4Fc0F2A21E9Fa122a47430d0E2A5c",
    "userId": "254063677"
  }
}