{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "387507047",
    "entityType": "User",
    "nonce": "0x6963187f102d02bed7e45175d85283a868876a5266a893d78c5e1003ed015b49",
    "signature": "0x47e869cbfbbe4569c90591698a6f6f9d9a15c578ea10a6285b3e8d75b9c07848599c70934b4c2abb613cf6ffca181ea1f0088bcea1154b1e6dae55939cb285121b",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}