{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "511604931",
    "entityType": "User",
    "nonce": "0x31e96527a4c9fa23289fb92cfc63b870288f5d82909e53261016374a25bf7fbc",
    "signature": "0x0baac69809b6a2c617ca666fadfbb11cabdacc536de38da55069179b41580e8230d36d395316251713c0881f17e1b5c6e75cee838912de3d306af9115620ae581b",
    "signer": "0x9698A898Ed554B831a7BB69972E1B05eCC560430",
    "userId": "967510490"
  }
}