{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "363967944",
    "entityType": "User",
    "nonce": "0xf29d5dc56aa95534dbdc9d1750de34717a7333406d005604f3ccd855fa564969",
    "signature": "0x174af87d6754dfb02ce5528a9f14dc7f16bc7a5e9174e7a0177c37a7e2179e202a00625fa320f2b2df23bb8884e15d2a6bd4a51b83b2b2a7c3c1b53b2884a5cc1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}