{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x08266c340e5c7bc9c8ba277afa835550ef41ba719348967ce2a7713bddacd397",
    "signature": "0xcbf88090fb4f717f696667169961db183a2cc97097d94a2b760f2bafe20fd31870dc4d7382550f40ffdab941388d728de124f8fdd55a08aac36e439536cbb2081b",
    "signer": "0x16180b98Ee6A1b48f7a45d606AC6B1897005f3a5",
    "userId": "547790908"
  }
}