{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10449019",
    "entityType": "User",
    "nonce": "0xbdf2150ec502692146d961ba541cd646f8463eef16588726b06f472eac41f168",
    "signature": "0xe60009d3e32e69a8ddbb7d5eb269a7de16a013548ac382753b0f5e735c790f325545d86a049618eb2d18ffc8ee779091be9441ddae0ab429575a24baca533de41b",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}