{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104348",
    "entityType": "User",
    "nonce": "0x4a87a32a181f341ba78b9a4d710ff2bb5c12d93034247c8c821cf5aac1e36458",
    "signature": "0xe86b3fa106d9bb368e637cef006f680a776765a1d8caa4c362ab6a1e672674bb09f55fc2fb9c335cd0cb0d17b8b179c36ab9667a73fb32ca0aa13e6a0d651f4c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}