{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xc037ce34cb12a8bce5e545700164b443c1a9000b\"}",
    "nonce": "0x5f0e8923046c961a3551a4a6ab58e4989fd1f8c443950b66d2850bda4e5429bb",
    "signature": "0x5736082be35de3bac343e53816930c969b794a969927b1dc930c49407431efe2007399cf9c2d7ea9c6d9614ff8ed3c06bea1623cd0dfb253e7b35c55da83ae351c",
    "signer": "0xf157a9154d49E3e5C730CEe20879b43fC4c9DD72",
    "userId": "502422671"
  }
}