{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "582796326",
    "entityType": "User",
    "nonce": "0x9b68d51b198da329a6ab82625c014ddd07a927ef21ed85e38cf7e55664e6a0f7",
    "signature": "0x1a38ec7479e6bed192a771c524e4ccf5783d569523b5c0acdef88c20bc8b608f30761614d142b89506e0aa6fa663074bcea55b5d273b5e56f4c2ffefebc4d1d91b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}