{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2515",
    "entityType": "User",
    "nonce": "0x78e503c4846fec478cc7966582f976c36dfaa70ecacb5fc5f5a6baaf76f41a9e",
    "signature": "0xf424aa4ba4438e3fbb0c2c9e81e8cfb10e313f706134ac4210267d3a0914589d64844265148144616dc8ad1f8b137eebbf1f71a006eded7fb270d3a5028213211c",
    "signer": "0xC299a895e223da8cf634d8dcF7596f2e48b42090",
    "userId": "3396"
  }
}