{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0xf7734dba46ee30441b7041857dd26868fff2a41ccf2d4a9169999f802f96ad4b",
    "signature": "0xfba47a10305693d6c4e9d8965904e26b60a4247be2d9777e2d4fc00d91cfd18d7ff1cec591e766ed0d0f11c1a73cf288dfc6498d36e246b65032f93b975cc4601c",
    "signer": "0x5Bc42C44dD971a519Bb29863f805CEeE55a44DF4",
    "userId": "12220"
  }
}