{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51154",
    "entityType": "User",
    "nonce": "0x7490ad82d71ffc950420dca802ab501c755b740edacf4d79e2710b76cc1593cf",
    "signature": "0x893bfb4c153ea156aec8f2c83d0a6f6f10bbecd02dec03aadc194e920f6e178e0ec80082f589439f0b10851276363d217ffbd6fe04b71945486eaf22d0fa71431b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}