{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "978785085",
    "entityType": "User",
    "nonce": "0xcd1f7d59466205cd234ff63091dd6773231280528706c5967e91e045eae1905d",
    "signature": "0xd97f4da36cdee4ec7334a057f5a46364a2c353e5d9b6eb38a3ac6bfb6dd90b345896deca1f8d69c6759bfd3ea2ee29c8108fb0d082842567b510eb075d3b73b11c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}