{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0x258fc35dbafa106584a82d302c8d73a4e0babe1ed846d784a51830145661996f",
    "signature": "0xf65ca773732a6c8d6c3c9f302dc62c1dc77b2d2f82e0f8d7eadd0e12ae65dd3d71ebfe766c8d6c4454fe040351a949637c6d6f1c5e5df3b14d82b5d346c975051b",
    "signer": "0x88B27943F74D36094296911Dd903a353d2149590",
    "userId": "410246880"
  }
}