{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0xef60e3b27ec9fa228bf06e6a1316f8946bf7cfd82562e627a8bee8d588732ba4",
    "signature": "0xe9bbd81e1bfab94e3c04211ad3921d150e8dfd371501b012ad28e8350eebee607855b627ae95e538d50f2fb61d17596f8dd4cc50dc83ac0b3dc74fca22dd7c0a1b",
    "signer": "0x15c09392b3d192e71eE5b8c7648fCf318fe1bD7e",
    "userId": "28561"
  }
}