{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "256497",
    "entityType": "User",
    "nonce": "0xbc0fc8db88805b132dd04d6897e6feb2330802ce16912ccf07317659e9229004",
    "signature": "0xd8606ac33051819e344ca5a56d06c3f9a006a47561cb09c503a16a8212c20d933be02cb0f2227faba4aafce59949f201f9aa67ea13814cf671d1e010ae98253f1b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}