{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20589",
    "entityType": "User",
    "nonce": "0xfcf2e44e2a8f568dce08813bd8fb23a4dc7d1a45fafd15e8b771b6822ab40203",
    "signature": "0xebdd9b728285dde501734d157ef9b0f154fb1d7bbc46703c74c952c454b6b2cb37f72c0a8564a7c1bc197c4747bb338b1f00e659ef8ab176183bcddab12f75731c",
    "signer": "0xCf51c0CB439FF3aED8c04d4676b43572a8F8FB93",
    "userId": "763179319"
  }
}