{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xe0525026f59d952ae2cda2f28771796c2d7f7d97\"}",
    "nonce": "0xb521c2bd279789a1eaefe196bf9f03e1a62c1dd3b5bb158aa7fe4f9aea8b6139",
    "signature": "0x52196323262d7bdb34c830781121f3388844ba8d5350fdbdd6e57f91726df7436d2e5658b18e3c0da56fe7c2f84ff6b3fbfed2eca82d55b3c8d00894d8a81bb41c",
    "signer": "0x24148a2Dd55Bc0DC2801e462B14caA5E3fa3E6d0",
    "userId": "157814174"
  }
}