{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x286e7ad8f9447d0112953bdb1684a4b4192ecb76\"}",
    "nonce": "0x9304f21a422caa1a2382644b9bc24d9dd7b36bab8e98f2c1cef5c5818285e078",
    "signature": "0xf819032a5d7d141b5ff41f43d3ef480426da38afe7ad25efb6c662fc3e85d3b25a9d203bf089e7d6f60bc28907fe39e2e71854edb0102f99693d2ece8544fd9c1b",
    "signer": "0x91d6e2A9D5cEdf13fdEeA1EeF569Ec6502AC941E",
    "userId": "752118480"
  }
}