{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54775",
    "entityType": "User",
    "nonce": "0xc1c4aa4355d937319ffd411a1b555a1538236ab0bf0a7395a11789bb898b25ee",
    "signature": "0xc8867d1b1999642c39cf961e068093809644c946abd5f32f703bbc15d7b50396286af78c8aa6923d92ac22616ed69a992636b469bdffd4a950ca178a7ebf7fba1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}