{
  "manageEntity": {
    "action": "Approve",
    "entityType": "Grant",
    "metadata": "{\"grantor_user_id\":1897442}",
    "nonce": "0x4df4c87330f402af1c113056e31dd9158af5a1f237cf6fac95a5e88e931446e7",
    "signature": "0xae79c6ce67e856cfe9898a7531e9822d9d6c46c3db7f6e455b09d8a039abc41c2a9c205e01ed1c119030dd8a856de9556d8ced09e2a0b94f2cc8ad97fd509dc61c",
    "signer": "0x6CDB14bB0E06b4Dc606A00A022c8bF4229E1699E",
    "userId": "403667803"
  }
}