{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x4485a22dd51de7c4f8e581e914a8663f23b3818d\"}",
    "nonce": "0x6549ca914cb61106ee10a74a2c5edad757a3cb561fc84646df951551ed6ba33a",
    "signature": "0xfbc073b821d904adf2a9e7f2deff711d4ac7afd3f6c5d1df57057320bd36e68b4da5155ae63379d46d7a1013bfbaddd272cdab91d5619ba14efb17593f1674bf1b",
    "signer": "0xE929d5b0D27781f83f0b5A8e37b2652DBe76579B",
    "userId": "319129"
  }
}