{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x7e4037c1da9babcbaf7af7df26999a457dbb78ac6fb957d5843e59cd5dfb76df",
    "signature": "0x2fac7c0be6ba381108dccd23b8a3c1f7cb6d35444ebfa2a595ea25c927bf2c210e142ca0de96724a1f94cae972b34c0c512e03d97daf0ab7386b9bd2c50a2fb01b",
    "signer": "0x345889eB230Ca262518FA6D314ae59F20e39A1E1",
    "userId": "888641864"
  }
}