{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "688850395",
    "entityType": "User",
    "nonce": "0xb5254c68d622b60a367fcec7ad72f1d4674221073ce14c7fbcaa1c7c44394884",
    "signature": "0x86f72095834f94b474418a8a25051784e974c6ab524465e5de229cb30712b2e83e3b79cdec87c3cc747f14938975a919eed7ceea083666a01088ba496c48dcb11c",
    "signer": "0xdA0eFB0e7b973C487c12501759aDb23012CB5248",
    "userId": "178070"
  }
}