{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xfe7eba5b09592992ab387e0d15c48ba2c9e7e5a2\"}",
    "nonce": "0xde74e7b1beb3e99995bcb2caa1fe56d6f344138d39946feb15c90e9171b1f6f8",
    "signature": "0x8fcb6f69996623b736aae71b2bf536052efce7a3b77887d13ee0fa02890bbcb80346c2fcc7b53a489ae396edf462986e5ed0ce61423aac5fbc6dc3d9f8368c421b",
    "signer": "0xD4075518293370C8887D8dd80B16bc683A59D633",
    "userId": "743640235"
  }
}