{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa99fda1645c4af4d7e6a6984fb5770157519e1d651a990050187f0f43efa671d",
    "signature": "0x8f5ad6752dba90c63dad238901e9bbdee2e87cb1e969d4db12837f0a61d674c152fbe9cd4adf2203933c26d5a26a91c701366aa733a57f0431e09712b284c47a1c",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}