{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x35e6993479ab2964408bad542e9a25f00725b74ff562437ce91a0a9728264bb0",
    "signature": "0xc91991667e538cd11e04bf983e3d5691c255cf9e0d875481798a5d0197ec5efc46589af536d5ec4d15d6ec7d7ca571dc765f7dc1d197c5f76f089d65670ac7c01b",
    "signer": "0x70198A93751A42B30b73B4b84803dc6Fe67290C3",
    "userId": "37067745"
  }
}