{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x17689b8e237a94a0b5e7ce968e37c1cc32838bb9c5ecb10ae259e7eaf76874eb",
    "signature": "0xae2a14ca25e5a7a5a015fe99c6a10e035173b877cf65e7810e07695ccf84537151c64c79788fcf55d671ab011817273721f9019db7b0ec018eb094b94b206f6d1c",
    "signer": "0x2deEbAb60643d30381F4eceA07A3a390390278e1",
    "userId": "453889007"
  }
}