{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125856948",
    "entityType": "User",
    "nonce": "0x64a42b3b3703dcb18cf8ff4e26cc4e1aaa39eaa6c4ffd6eb2a2f7d7ae53af61a",
    "signature": "0x201dd7491be5d676e2f31844079bce655924b41a7962caad76784a4ba290929975f6ed1303eaacf6db1855049174c9372a733e6b6ca7933d3910790dbffb97901c",
    "signer": "0xdA0eFB0e7b973C487c12501759aDb23012CB5248",
    "userId": "178070"
  }
}