{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1477402",
    "entityType": "User",
    "nonce": "0x8a0b36d345b549030ddb4ebb5dc7c6127226a33bd3e1d757ec369bd428f4fec7",
    "signature": "0x4304deed9d1f10152c6a7b54856ca3d0319b1ed2cff9f3a3993e4482a82d997b4155691726ed836a45b6ab186408060d87e296df260d8f8df2cb559e8d8a16431b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}