{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "980397349",
    "entityType": "User",
    "nonce": "0xddbf22b8e06f8d49f1ffe9fc87f63aa047b7a16f43df712262964afb34e5cd12",
    "signature": "0xc6740ed237199d2477c0f1baff8e2c2abe2600276cb9603d51d7b79bc712b9fc5959aa3a846de0cc6ce3e6ad98ee5bcb46776f3cec04644185a36211713fc22f1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}