{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "711757920",
    "entityType": "User",
    "nonce": "0xeaccc563891d503435156364a6fedd271c80787bd0cf779119f0ef54f6ec090c",
    "signature": "0x0f94a717148cdd63fa091d8e4ad3dc744ad2606e24fd63f07d6d757d2bba37456345f7ee4ff295f18afed7a4c3fa2cd1fed48278e135759bb3e52ee9b68677fb1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}