{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42521",
    "entityType": "User",
    "nonce": "0x126ed42f37e08f7ff5cde967e6420e86ee88acb29b7b118e16423a6e52b6763e",
    "signature": "0x077754a56676bd2a3e40481260d3289239ac75b1f9735a9140e7642edb8507f4153e04576c6b8fb9b35dc6ca667858f34f4f38f9ba86b5871015ac412a0066a31c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}