{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "239519",
    "entityType": "User",
    "nonce": "0x779f66ca86038505657e45287446db6f9a651b4e9f6bb8227aaece48e3f329f2",
    "signature": "0x1a5681e9d1d2f151c0a21cfd964c0cfae24aa7fbd1576aa1515e60ddcac0c2ca618b0d4d8c1bf0a74f2861472c5d3ae61e2c25ce644b2b5f373768655e968a511b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}