{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb8bca31cfc04088b9362f69a38864e1453c08b88a24c27159110ae7f5303e691",
    "signature": "0xa80025e29cf2823691d55c4c8f0ac746a3bea039e5a43b9718da3b4db6b689e765ed5aa32fcb5a6fa31deed7b9b416599a28c284a22a681f16e0695a32eba2ee1b",
    "signer": "0x0326cEeBC8D8084bb9Bb3d2cB26e0F1D79c03903",
    "userId": "438327537"
  }
}