{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0xff826dd06989cc82438f1feb31e58b8a80f627e2ac2019212a8ad107e9a4fea9",
    "signature": "0x6bc9003d731271758a816ad8b88311af1e7c606a65bd604761acba25516e7d396fc8fb4aa883bcc2f053abb76ea6e4793c00ba5a8545d3d6b8d825a4fa204d5c1c",
    "signer": "0xeC310d03ad5593Ec32D929B706B993f0922565E2",
    "userId": "406161903"
  }
}