{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xe0525026f59d952ae2cda2f28771796c2d7f7d97\"}",
    "nonce": "0x28852e9d9c7765649c8628984476aca5079b61da107dc5030250da1d6eebdcc8",
    "signature": "0xd83b7955ad975c192eb5e0c91b545f4887e7a37ca17074a6dae0570402f291e3221f28779e075819d7dde027304ac116508073ba6318965f2e491edee4c9cc1c1b",
    "signer": "0x1e7bb427C6BB5b03a6c9526fbc8C254955E207e0",
    "userId": "902246146"
  }
}