{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x28c6f1fc3806d5e129623b9bb362b50b69d5b36a\"}",
    "nonce": "0x776fb970ba8783a7993921add3b807523376a29162444cce38944fa1ef4bced9",
    "signature": "0x51eb3d2a1197763a263717814a287191c2def175590e9d80302f426c4e8659bd03b11aad5f51335e07fd377ef4c9688a063561b8958333eab71521596718859e1b",
    "signer": "0xdbA357EFDfe46052De520AB4d7273f64e33BEAb1",
    "userId": "609391289"
  }
}