{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "195758",
    "entityType": "User",
    "nonce": "0xa9b14d333140d3b33fed6eef7a8e141f663f71370e7de52ffd6799159ac35f16",
    "signature": "0xb028c7268e318e2751760d0e3eaccc85836bc5aea795f1a37ca23ceec1d2743e0c3499a438feb2225a7f185bad35b22170ef23469665c8bf6357806a4d9295101b",
    "signer": "0x355325e20819Ca56f2C729fEb6E34FA039625A24",
    "userId": "39191"
  }
}