{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "520958130",
    "entityType": "User",
    "nonce": "0x63cf5562c3cc8642edd1062f10f808cd765a8446d52818ea2b77bda5be701839",
    "signature": "0x352e75494613fdd964cba0747f6ac3498692e047bf4668f75bf7ac07514c9be76ae84948e42262d84714b2fa226a7bbf3ece2657c82a8fc941fe139914c6f8f41b",
    "signer": "0x42cB1e20D724BD902Af64cd85c700BE6118500bD",
    "userId": "47154652"
  }
}