{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2ba9fd264fd4dbce2d8df9df8cba77fd3d1cbf4833b49a99655eb12f8d5083b5",
    "signature": "0xf2e01ac867ae0cbdab9bf7abcb4b8235cf5474919cfd89b7831c175a7377577551496af4520fcec225d6e8bb63533f46f1d97b2c4cea68c3c315ca983cb335c11c",
    "signer": "0x9976A5bDB93F69653188778fe013ed45ca0c2Ab1",
    "userId": "85051708"
  }
}