{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "443107",
    "entityType": "User",
    "nonce": "0x9a28079e4be2ddb518ecd224bcb0ff72a28029008106ad2aef37dbd597661acf",
    "signature": "0x45336a41f0132233191540b1d2e1ff3bafde6ee869ff01bf7f45354b1ba41e7138301cd81b229f44c7eddd30b3828dfb67c6c1e53b192069d063062f5469ee441c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}