{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "183728247",
    "entityType": "User",
    "nonce": "0x7417723a6d11af84cf5f60e9286baf231ad07c0d0bd11f84f85dc8e934ff5bef",
    "signature": "0x7213e8d16d38c129e218049cfc9bef0ffe22b9ca9c943a6e72b807aebf72e2342daa7341810821483b4e93cace196e1c1618d4cd103798d5480ccf7f6668d2d01c",
    "signer": "0x4f046eBEA1DfCcc5b405945f30bB06749d4978C3",
    "userId": "506555278"
  }
}