{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1844160",
    "entityType": "User",
    "nonce": "0x9ffa6847a2c76966ecd16eb138c2bd151e340b4dffa2852a7819de5e5960a429",
    "signature": "0x8f2166f8e0afdac9d0df0a99120fa21a1e05f5931bfa14387330fb4f7575396f4dbcbffc823bae12bfb42245b8228fd3c7f5414e2ca86379abed3f714806dc781b",
    "signer": "0xDCBa834070cc02e7e4bd536cD1644e43e6C941BD",
    "userId": "214528491"
  }
}