{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x5771b6e703399d7c6ab31d855c00d1702a6a1645d7c95ad0716adaa504629c5a",
    "signature": "0x66889d1d065c88a510a8bb45197e4b56f67c481d53ba35fa831e51b29ab747d033ba77abf5ec8457e24bb02fceb88090ebf1032cc257a02f0a981f6c416dc6ef1b",
    "signer": "0x25859426826376DC00fA4D77eAB6cB10d5244898",
    "userId": "169019913"
  }
}