{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x597edc965bdb7d7c2c4850826c93a792eda6f0c253315bcc02a547ccfeb9cdc5",
    "signature": "0xce460daff1288eeec834db5e3dba8bed38313c8f154cc4864f84fe379ada22543fd58f48ca22dccdc04280abb2e61403357d5d15caabddd5f27bef6eeb7d62e61b",
    "signer": "0x68380dB34e959e704b0e021698229863f134E378",
    "userId": "656357509"
  }
}