{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xe0525026f59d952ae2cda2f28771796c2d7f7d97\"}",
    "nonce": "0xe6545a1fd8767eb0825394d77e1920d859abf59999d363aaef100e44a775b047",
    "signature": "0xd1349d6dbf1c016eb8d167341f26137ef8fa494b8f6ec86e05a6a8de55a2f17a384276daef937986c757ef59e40ef6d3c4f51d0a3b8fddc7d60450bf3149d2121b",
    "signer": "0x1cCB16bc6403d1675e6dDa691f8869951F0A3EE3",
    "userId": "299807142"
  }
}