{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x922cb2ae695da9f7dd0e556954c23eeeb8bffe0e\"}",
    "nonce": "0xbe4d43bb0b6f020830a1f49762fbf96db142f211e716d77c03b9c9cdd9da5df4",
    "signature": "0x61c99b557fcdf40663faa175d3f9fe31e7de404f2f5ba22389413cd24648b0ec3a8c55c601a16e23ab7223ea83aca684bf2e6d26fd1642d8f48145c078e7b4cd1b",
    "signer": "0x87e4380306024d22309CBb70efB443AC8aE372Fa",
    "userId": "308100838"
  }
}