{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "388772718",
    "entityType": "User",
    "nonce": "0x61dfe6ebaec8b9055a822db5117fcf40bf15248ff9d6c100a8cdcea58bcd9250",
    "signature": "0xd23ede0e6acc0382b5e7fb52a283beef43923b7804d1d0d02405b65b304d9fb335703a46c40c7d7df25e692289be1b3d69bebed43356cb04da8719747c215fa41c",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}