{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157591",
    "entityType": "User",
    "nonce": "0xdecb82e91c4ca717d888a6be5fb1692561ae2bbf0e9380692d31be905e7df3c6",
    "signature": "0xd8356ba4d9ebdf89e49d6908a103e50277403de2cc94781601614193696aba034eb27593555b5e7a7ea33f2a72d086d96a9637e42f7c842f032981a5a105f0511c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}