{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa0b103dd4ff33fabffd7ad48d1b90b027df5733bac86b960e04aede961e36994",
    "signature": "0x29717a12a925bdfc710a6f74eb71edf33de4e6b2f94cdb9e34bb1fbe9564acd81016b9c861b5856dc732a401904e6c559cbb3327488d8ad79a071351ef6187231c",
    "signer": "0x24b9146ee6157468Bd66F70d64d1f4C531D24cd4",
    "userId": "970548981"
  }
}