{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "837713671",
    "entityType": "User",
    "nonce": "0xbb85e7872477a1bdc5398249d07cc8e5aa1a1f6f4072515c735b95daa0737f5a",
    "signature": "0xbda7b49944e4a18803ac517c1d0ac5e76e487ab6c78cb69318a2509ac914d4a44583c8f5e9aa06fdd307fa38b76d4ee080507ed6e13ae21f1209c19bd283e5f91c",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}