{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "211200",
    "entityType": "User",
    "nonce": "0x80f83f2feddf35edfe7fef6934698269abd3bf553cbb4f03e05e1a97837a3d51",
    "signature": "0x40f129a4d88f131e5c059971d0319244b7b5e16160d7c7f593f363b8cb4a392f603314b6e947c39de902521b9ee8169d7ea0120616a9b3ef7053a5d0ed1988711c",
    "signer": "0x926F8d71a7109CF6Cce00DA74e1BcF50aAf63E8b",
    "userId": "358546053"
  }
}