{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdf9d34bfd6a06043fba39168de23f511b899c464a46a8a70c5e270442cc8837b",
    "signature": "0x0702732e4d577ef1f65a8257b5d8a6ea116190e5b11b9c6f19cce35036c7fbdb52acd8e4bc7de005246ca8133b0b19907b0d52ae2883bb56c28fa1362d3c135e1c",
    "signer": "0xc257Fee476D1eDb43a48CCC483EBDa6D62711d4A",
    "userId": "111726858"
  }
}