{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x98b43bd6844aff5e7300850a44fb4e3c19310b9c36bcd5282d51a06950506886",
    "signature": "0x2b4923bc523ae6c1dd0dc67b36f9d343d3b081daef72bf0567417252e1a1fbf856dd7c6c744690b08299aeb827e6de0cfda7d9b6d24dee78649eaeb2a89632c01b",
    "signer": "0x303fD6F7668Ad0AD901434B85eF391E249785A2C",
    "userId": "179777073"
  }
}