{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x61a367a1f0cd686377e501bc6548e0ac7f9c4d7efe4eaea3f8d428e8d000d458",
    "signature": "0x75a931c5c04d500895d3fa7dbd9fc370190545ed9cd83e6ec5ef36241588551156f8e3cfa103cde17e34234956d2c1b396cdab33d920517c12c67989cddc39631b",
    "signer": "0x303d7428C0b65b2e1e36D9775F117b3e3f255E8E",
    "userId": "546021750"
  }
}