{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78751",
    "entityType": "User",
    "nonce": "0x1f452d440270ca303cdc5d910874042ba436c6df913037a84dc6422268913434",
    "signature": "0x87c57c41b63e0d5dcc5b589c8f4fbfe5db71d84ef031697a202c75bf33ee728c2ecd63ed66e2638d2a77813ce25b9db00150c8d999cbccb90299ef468cffdf101b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}