{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294",
    "entityType": "User",
    "nonce": "0x99d1382c0bbd1b474d6cdf4a0d382dbff14ad7b2b9b7ccab2bba10fbc9e483e8",
    "signature": "0xf679417329f0d2ff0f917b94b9e6ef8051baf5d9d25f6e24374e28b1a920a2022e3ff50febd0be4a68ede2663ed7ef869b692e6269eefeaf814e7e4d593c24c81b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}