{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "272338",
    "entityType": "User",
    "nonce": "0xd0b169d3d6e274d80a1a3f4f41a09403ecebcd0f0b1e4e298ba6d3f8b626ee5d",
    "signature": "0x0c194579764ba1e6dded5c3fb098802f2942207955c578123cce7c9c1719edd573ffbba279e7c5d296e1a33cd12f80c8f114c508d83d85d87300bd0db93a672c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}