{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5871",
    "entityType": "User",
    "nonce": "0x40fe90ce75244d1b186aa0f66545e790128ec3c4677d02041010043a7a11005b",
    "signature": "0x5dbbb58f213966365b27057d87946264223ee0cc5297448b9339f270793679e4684bb3076a183c00fc0ca805f3f23afdeacc87ed2ded12ca707aa46425ca67c51b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}