{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9063dc64294c9fab61f8537bb883f1533c69ada72909e041679c582aa43141b1",
    "signature": "0xaf6e518f590dea2657213cac0833e7574ed5eba734dcf6b51b841328f66bf143586cbde11c44170a79b48a612629fd23490035e8db6eac3ea6ab3d4a0625c09f1b",
    "signer": "0xbf8E9a2a34545D0Ff9d02769fD943A905c9560ea",
    "userId": "463333871"
  }
}