{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdce062add445e65c0d42b4d2e66c126d6f4d834af91a0c6d1804ecd06142da36",
    "signature": "0x7700ca770438ae60b8566100a100e627863669f6c43e2372f702501a7e4ff0a94e63ec6df306fb0a202248be49ca9c543f6cb4f79b82ec4c607f66a7750947c51b",
    "signer": "0x267197824dD66b1Dd1F69bBCEF687EF0d3Aa5B9c",
    "userId": "737812505"
  }
}