{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xe0525026f59d952ae2cda2f28771796c2d7f7d97\"}",
    "nonce": "0x1798a8e6de5deebd3bf0872a106ebb259f5c4f20f7ddee8fd7890fba25109d80",
    "signature": "0x1038ce4e965588a7195e52c9833562ff6e2321137b8ddf1adb20d280f6323a5e4c2fe30936f29300d5b2b83291bda67b7a9a9a5120e3492d90e6cf5e98359f461b",
    "signer": "0xFBda925F5f93C42fc604C51a53224206ef1cCEF8",
    "userId": "285075034"
  }
}