{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "377610060",
    "entityType": "User",
    "nonce": "0x59547c7161050cce5632159539b762e54ffacadfdff056e1bc8937ea41abd5fc",
    "signature": "0x9fc67c26f48ab83bc943ea0ec847125aa506d1b39c3d916fc5801c63653926925b1e1e1737dc1d2b2c7e2f0de232ff8a9617e3d576c5ec03b2e892afc41fc1161b",
    "signer": "0xc7159B67C2D17d8B4B593276f927dd32CB6Fb647",
    "userId": "241414615"
  }
}