{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "976503350",
    "entityType": "User",
    "nonce": "0x275de246c68aea913cb1df3d7cdca70ee72d087279036861ed52ed9f44cfed05",
    "signature": "0x00d67b5dacf58659ee79291b4264a19ba8f0bf869687e02971c1139dc178324f1cd7521d315a051ce4dd7845d8ad234c0ca6979de1502b870d47edf4c83386df1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}