{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1258",
    "entityType": "User",
    "nonce": "0xf846b264559b3afb4a2bf00dbd7bb018c1d119ccac4aa01ee2bf5c164e2b46e7",
    "signature": "0x187b7079f83733173ab372380e88f456467bd2bf69b2ceafc13399af63efb2850fb8d55406d02cc29c5cee064057156f40218be12196ab36e709fbfaed2f30471c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}