{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xc037ce34cb12a8bce5e545700164b443c1a9000b\"}",
    "nonce": "0x4995ff862a09e76a06f288fb5ca31767a29f8710c61a58d130ae15d006fad1d4",
    "signature": "0x15537bb1dd470c2ee5c1aa8332d9c48b98f4f68158800f1820bb42e3f841c1416e38e08024d68f4f6f6041e4ccaeef1fe9b9e10a6d08413b5f5ee5fbdaa1bd2d1b",
    "signer": "0x450aE17b1Cb8a3475CeFa9292af83A53f1CF254f",
    "userId": "65878"
  }
}