{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8c30ba0c6ae40ca6cd1918f7e52e3144f1042f0d0ad430026ded07f3bd82e6ae",
    "signature": "0xc3c210933df3e65281ada9eb23fab98cbf291d10f0106513ba6be7a5763093ea1b9b047f0a3be97713dff5419b43237aa8f73a8af710ac4355f8a4d4f41984aa1b",
    "signer": "0x0326cEeBC8D8084bb9Bb3d2cB26e0F1D79c03903",
    "userId": "438327537"
  }
}