{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x5826113b82941207533b0f2b86c3d5f2a00c1969\"}",
    "nonce": "0xfbeaf67d0755060b92d511bdfff9f5e5179c5a9ad4377c9490eeb5662ad1f15b",
    "signature": "0x2f3910001edecdd60c3bf96d2d90928e15bcd2a8d67a1b5de548b0a7723c4e3060fa69bf03699b0e9b0266d67ab1074e5f990b3348ebae84dcd35012eea7f6e51b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}