{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc944ede62c1bb315be15bb084ed431e1f356720dab8fc52ace346ec02274eb93",
    "signature": "0x55ad126f1d76725328f9b50dca7cec73da7e4fb85b2699e2795c36571fd39fc871713c138a55b4a82ae032e65a2c2c480d3f65343d34a9b37bd3e8b6874a6ecd1c",
    "signer": "0x76A227c7b4F1ccB6cBcdb541907c545f2D14a0fE",
    "userId": "239164419"
  }
}