{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "864991522",
    "entityType": "User",
    "nonce": "0x9d39a543394f2ff21073a4b3354666622e4571c64a376aa9e677ed37d473613a",
    "signature": "0xfeb44554f775ce2f2ab1e06253c757e6616a44ee6ae0faab99d2e79e138b3c163d0935c49986dd3f8cffef2f58186f8cc66209e1ec56cfb8c44af9369d1f7d701c",
    "signer": "0x85f9d440b61768a3EcC7D5bD2307a38caf322BED",
    "userId": "242102384"
  }
}