{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "942771296",
    "entityType": "User",
    "nonce": "0x537fdcaa8011498a713a00cf6643265f45c02c6f4fcfc2c32e435f70d9152ea1",
    "signature": "0xf80a3dc6fa193077d4674068a9f64c842fe26ffdda51a156d3c6895631eb7a0f699ace59b7700aba14d7e870813a99e2704cabec8e2f776db398c634019872af1c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}