{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x72c0a63c5ead3a9281164313c6893dfc6b32b4edceb28d7b975d83ee66bb6657",
    "signature": "0x3d6041e78cb0fe656655a50225c2c8a85c859bd6b3329f6d437f7f2f126800ff78f1502a6af4dd977f8d0867d68c938fe21da61d3a0d1ae912694406aede2ba81c",
    "signer": "0x1684Ccb780324eAF03ad433eDF3a317Cb2FE3D5e",
    "userId": "69083966"
  }
}