{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x1d3c4fd15880e7b8dce6376f5e830a5e8eee7d6a1cd43c2eb429a0004d20e5b1",
    "signature": "0x795ab5ba439b9c3508273dcf6d122f91e7e0bd10c7f3e451e93f7b5eae8cc5543208aab74abb544078555829fb6b0a8fc58046c0c44538dd778013e3f238b70e1c",
    "signer": "0x1eE9054C1Fbd103C220810Af04980227e57d33E3",
    "userId": "52328655"
  }
}