{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "892407125",
    "entityType": "User",
    "nonce": "0x5113cbd73b937b9d212497544662352f39ebf46bbf025dde4a15546806f3ce94",
    "signature": "0x39104b66efd023b5bc1e68bb15f74543d8919a86b96ef2fef006403d85b2df3c21de085252eb5c9c984c50a61a177555f9095458504381825aae92d4affe2d371c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}