{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0x264418158e5a28f9fe0f5b6f60106dab225555c195632fec2480ccb2f0c2b7c2",
    "signature": "0x5a83920212ed20f688c58b4ae20ccf7dbd3ff14f2ac944d90024dba7fc8533822dbf97fa41280439a86208ac40c40178a20cf31728945a44df4195334822d2671b",
    "signer": "0x6c90eb002E5ef400ABC041Db12DFa13817698c02",
    "userId": "708367283"
  }
}