{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcdf488388ab04c4700742fc868c04cc28e6a3b3d74a23c47d723939ae9ba3996",
    "signature": "0x775dddd7af012593548b33eb46462e5db28d30cf68447dc7e33a66d7cd08f79316d624e97873f5eeceddd5e70d80f8fa789cb94ae299a432b421a2e3c73deec71b",
    "signer": "0x32463b19334262ad5409997DF73e02B03f287B25",
    "userId": "778999407"
  }
}