{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x286e7ad8f9447d0112953bdb1684a4b4192ecb76\"}",
    "nonce": "0xdcda6996e79e99e8ea10102d685901fdebca0ef1fd378b2ee051af258c88deb6",
    "signature": "0x9b045e473d09d987fc6f76e87a019f0721731ee754ae9fc9d182847a18bd5019008a27c6effcea308a546bcb4ba2eb31f7c700c1f412687dedc3fd3837a1db671c",
    "signer": "0x780c9A2a97C9A2523f126E57dBa342EE690C0abC",
    "userId": "158288054"
  }
}