{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305567",
    "entityType": "User",
    "nonce": "0x105ab86da95e27406747c70d243b37736d90597ecb7f5f657651465710da7f71",
    "signature": "0x07e6ef92c33264190b967d5d7f7d65847d737c32a7bb728b8c201a05a4c6d4f1521b0ff67c39034c5427cc98764ebcc365d0d41cd406f3084389261b82c152da1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}