{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x1e3cad381e690b0061167553d437d5bfa58c0daed28d3b845f6dc5e45b183a27",
    "signature": "0x73134b1d46fab5cdd7b159a80bc89a8c228d2464184788053311477c7e0b5f0c0c83c7eb7d8768c10410bd881df6ddc91f39f60bd79bfc4674d2abec2c5ad7e51c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}