{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5593ceb7dbb29dd094865800b6971e5d0bf30b53041bcb6ea6298168314c1b0f",
    "signature": "0x13d887f1528f62fa12efe94709eb934be82588f376789c4126e893b54464a592168186345486a499fdbc35289bcc70047f3c12b109f4802ef0f943fde3bf11bd1b",
    "signer": "0xA8B6bB30b9ddc7ec44fBbD2378C64A005AA43B86",
    "userId": "986897282"
  }
}