{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100976759",
    "entityType": "User",
    "nonce": "0xa9ff5c0fb7e57920ab9e63bfed0f54b0104e3edef17010020b9b6e3670eedd40",
    "signature": "0xa1cb4483e8b2a6e22ffe3a00da4785ad170501b06323ef06fe5ef65ff53b158b62ffc524d4d0adf182a1b0a68291fe3c1e82a7e09bff0a4942a354b30735e7211b",
    "signer": "0x1e9F846fdf1a89ba11e2D67fb4831B7E14ae8940",
    "userId": "617992566"
  }
}