{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "897512779",
    "entityType": "User",
    "nonce": "0x080d98d0f14b95181b2df23895cc441f899cb7f2e5c10f79cc67268a65070087",
    "signature": "0x68b140ade6b121d6229e84b711ec1158adcc7298462c74081ca46fcd217384e734097c3ded502dbbc03627d08885f3aed218948ff6fcd43c48c2f89e7ce99c101c",
    "signer": "0x7bF90aDB0D4f329e1dA9BB5123768023eD007adf",
    "userId": "111728084"
  }
}