{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309080",
    "entityType": "User",
    "nonce": "0x9009ea7b80ef900159692d9d544a8059d8892f1c971d5a2856330c491f2c9b62",
    "signature": "0x3d5721d9654d5c00d9f115b01bd65b38ad60def9142330a9ffb76418453b05d545fe7d9a0f7df954e5710e30bc504f4f83e9b54ec9c6378917d05dcaf4f120e21c",
    "signer": "0x416a5C2ea918764e4F698AB830C9c04B86cD3464",
    "userId": "605459163"
  }
}