{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0x8f385daa1a62c1bc4ceb513596616e946c35b214169458015f2a6adc4673068e",
    "signature": "0x9b1d126ca7181d87f2375d34996a94d83a35516ddec623f6d3c0eb02d01efabe142bb115827ea5c78c0776685a86ff135afcc1ca8eaca0c77f091b90988897691b",
    "signer": "0xB6B4338CF513aec486BD50C80aeC385e2F5Fc3F4",
    "userId": "150144719"
  }
}