{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37362455",
    "entityType": "User",
    "nonce": "0x0478447c806c371aa609afc4626a2c91a4ef1f65aa07a384e6bc552843b6317e",
    "signature": "0x90301e9f52b58bdd0632479092efc1c01a02af7b4d1ee4ecea5c64440d6ddf3409d8e1d1060712348a91a27f41d77cc1e608867307c0eacdd8d84a5c917966121c",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}