{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137582",
    "entityType": "User",
    "nonce": "0x049440afd91be9ba02293d603f52d9527fbaf7538404d9a99cf8e73b47a47f22",
    "signature": "0x2937186d66482584bca6ddec126ceee1d443ea6143b549fd3c2df971b21d90083b92573874e2b1a0d15d4757bc37931ba617f9007186707d6315ea76b04a718e1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}