{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4dbc214dc99d281af339ffe88bf3ef2830cf757e864a8302c9fcfe06c472c8dc",
    "signature": "0xb35145498ca797b723204eb6b3a2d1313177272e282abecc2474d3cccfbc743c4fb2a9833b3e7e768895c5823db37bde9116e98c40f0dca3a75b3ff5b7866f311b",
    "signer": "0xa9032eb9DCDE6EB561aF168bEb1Fab5f90B66Dc4",
    "userId": "211932193"
  }
}