{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x08302503fc780c16bf48a663300d35390b4aebac4a62404a2585410ce75ab1e1",
    "signature": "0xdc468aea9438e75bd907ca332eec0c604975b7d07b0863de7aa8a1685f10b72c06aca9b241fb24b66c716d51dec18414da04b527edf713bd25a9089dee5b36fc1b",
    "signer": "0x853dA2F0b99FC2B66c3152Dbaf7d4998d09Bf650",
    "userId": "542541972"
  }
}