{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0x819ca390865b9e356e2e5eb4d7ff394164ef5376201bee48fcaea7b48ef898a7",
    "signature": "0xc25260e7a3ba1e65b40cf05404257a178f85935c2658009d31ea17fdbeb6b1e744f85f59fc455fde90a75d405b04f16353ddc958a858a3bb053f19f7f17b89c31b",
    "signer": "0x6Fa4c99AA4E3c3DEf58ADa395e7bb7E30B9BC4e0",
    "userId": "773522255"
  }
}