{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0xacccfda14dd28e130ffdd991b0eaf142506ebe5243b2d44eb0d19b85f68a4ef7",
    "signature": "0x03a45578bfe38df364c6a655fbeefd23d52cd70832f7ec90a225afdd7a927d6b7c09e085e46e221467e916eb2030ed07ce20700ad38f08f4db486e3889e816d81c",
    "signer": "0x8b56644551c616d76E208a33ff293128cA5199EF",
    "userId": "909682261"
  }
}