{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0x64a1ec05bd2994dbcacda8cc56993a4dd85473bb8d5b39deaae535de8d9961dd",
    "signature": "0xaaf1c605e12764fae3d5f309f0cb4ca372bea6d9cc8ff114bbd43736dd6db66721e1af147bafacc061449a3d31552f85fa38fdcdede4cd61c47b8925ec253d401c",
    "signer": "0x5eb5DC8069a86D7D1739b23AC91F6df90FF1fB26",
    "userId": "870979981"
  }
}