{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x286e7ad8f9447d0112953bdb1684a4b4192ecb76\"}",
    "nonce": "0x9ca90c337f6e8220fd9f39e2054f5cfdf7d4f920ee56b96b9d9177771d1fe95b",
    "signature": "0x898391a7a53ebcfece0e6d3b344383042fd1af28aa464242443d5cc3d36bed6223910f7125e06cfe4ac648ff9c3f49d06efebcc44956a390badc6d8e194ad96d1b",
    "signer": "0x61037aBF8E5baaC7Fb0CC042854115436Ee9Ea59",
    "userId": "444257647"
  }
}