{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "176456010",
    "entityType": "User",
    "nonce": "0xc642f590cc78eaf99eac60cd23e7c0b03d050e6c83aea4400a24c8384b358044",
    "signature": "0xcb647a5e09bcac612937a48597f16e69adf234a0d7dfa2a49f0c4da2ffd1d78f77129941f9f8ae661199f316d1f7c6d8076c1b84cb1e3fdb995749c37c52e5e71c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}