{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306457",
    "entityType": "User",
    "nonce": "0x0cf33bf478af8870435f0b778b6b4acc9a6297ac6899de470fbae7f6ee4e2ab6",
    "signature": "0x3947be0e374314106db1edc56608ebe5f70e58b13f46ce16bc0c07332480d31543680dbc7525dbdb685792e1d58285804e80f6115e8f397877ac99129f1349611c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}