{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdd10bb5ab945ddab0a174a59251c8b9ee256c7d3f723aab461c0a552d8ecdf78",
    "signature": "0xcfa171644793b4b769284d6c34e3b0bba8b3b3ee9781558a26740033c75f54855621464a47842278159c68ba6657adea15d030f96c883b15d172c61bf66ca2151b",
    "signer": "0xF0CaA5581Af6ee80150b5aA4643d1069EC176dB6",
    "userId": "834540087"
  }
}