{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329570484",
    "entityType": "User",
    "nonce": "0xfee5ad4c0934284aa3f3ebc0e3e1237683432d09a09c38114639b80bf92ecb77",
    "signature": "0x29fa1f1eca851728309a582cb230f63113794b2a9f69bb18205c8a763b172f3d5297852b4b73dfade12dfaa2a2b8c15b473c626ed0bb17643d73b7f999d1e9f91c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}