{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xa75642c0db1834c9cfab880a2ca122a3ba339d84\"}",
    "nonce": "0x29b5b5d77a1c48a9aa9a8df4c7136248b8253b6a47ec23c00f5d6747bc0c1ddd",
    "signature": "0x98024f8c99b70ff8ed836d067543a6076749202c4af4aa11ecb0eeaaf33eae394596a61387f47b50a0548c843aeb73c6b3bd2d32e2654da79b625e7727c99a9d1c",
    "signer": "0x4086Dda2D91F77cd46De0859a4de37F888508faA",
    "userId": "568518925"
  }
}