{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x7a2269ca7a50550758ec1306758dadfe1c4f7828536f9bf819510eaea71e1c49",
    "signature": "0x9640e7179b7cbac81c3d9e39a734519e9401d58e5c667ae65883356b12935eef1a7008a5c40a18baccc1de87baa72c7e2d3877e28fd9d8f5a6b0a30c82be47f31b",
    "signer": "0x216E3DcB84F1654f711041294908a8f8ADb25766",
    "userId": "643512122"
  }
}