{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x76335d3735d1223ecb64403ff4bc87e8aaa4b792f7ad7179c32237ea54b76969",
    "signature": "0x246c243f0643eba6761517858d1ee0c4d3658dc04f11df3c34575b13cd9cdeaa690343d78f874b7c1f55fd32f197657dc576e6b60d53486e4c8340159927a34c1c",
    "signer": "0xCAc0bdAd229Ecf0efc8A5a4B8F0eA485e65681a5",
    "userId": "588900630"
  }
}