{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0x665c4b3267a116c3da49bcb5c1d90ee97913573d6569df893ebe3ebd70fbb08d",
    "signature": "0xfd67629572dc2194254394fef0d989c46db939efa9f25eb4afc1cd2bdbf934150728391b83da4225f9982b9bda1e6a39af40ce05da4c2200020dd6d25a20abe51c",
    "signer": "0xa55616A9D41cDaD275f32FE002f24B55ce138082",
    "userId": "590503539"
  }
}