{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0x3a88ee17856b878bc9ec3e46fa32f7ce429ee4c2782ac04649bec4d5c65d61a9",
    "signature": "0xb3c32dfe18b130e05f117c616df3e7b25939b81e49a09f9ee14f6e440bb1615243c69eba33d974a71f5a78ff007fedef28dc342d3cbe26c3fdc555c1c91f73281c",
    "signer": "0x2b0E51f603D4aB8dc30dd153e93548bCdc85E9B5",
    "userId": "233396404"
  }
}