{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28674",
    "entityType": "User",
    "nonce": "0x2fa9a1c39b71772897d3abd7d592c4ed83ffb7b21d62c936141db8866f4ac83d",
    "signature": "0x4b24754443aced8c20b594b1c7236d1509dcb62b1cc46f96b30f8e5d41dea1471386b933d727b43381e9fedde4d07a44d9ab388d2bff53aadde3a10e686c0de51c",
    "signer": "0xe2b1dcE37383Da05C6DEcaeCeB1e76b1449f1711",
    "userId": "218728810"
  }
}