{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "345852",
    "entityType": "User",
    "nonce": "0x3ac1f835d215ae7859d6dbacecd2652b7e630b820084ba9e776d8da414c9aac5",
    "signature": "0x2a22cf9ab3923fbd394e10f1640362e52859c4bac4872c34b5b0a30ca3b44c3220d515da2df79cc3350aab0050472079bc9a80354689dcc0bb330a7b29184e8b1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}