{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1880653",
    "entityType": "User",
    "nonce": "0xb2bf7767f5a24a5a0b748bc42e967e28385d7baf139a7ebafad7cd3a243ca1ce",
    "signature": "0xa967e888fd7d91cee93a71316dcb79969e8baccd1605f4800b4afba9fd958c544dcb81fbe2c5f48a9104c9d55a8c8c8a2074dee0568b0e6a0d87713174dcf8961b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}