{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1880649",
    "entityType": "User",
    "nonce": "0xf45d3e36e38929274637d2bd8b52b1a9d766e6db3c949e5649c6539c1ab8f1f0",
    "signature": "0x73bbf5fd25c4976a4979f00ffaedd0148efdb99ae650711c309eca107077e5157c932668ff20364b93f58d300ef8483cb9dacca985f76340f1889abcc3d4aee71c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}