{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "662",
    "entityType": "User",
    "nonce": "0x3c672069d5274646f3fc13a6a8a281120cc35bb7e483e263f6531def15eea965",
    "signature": "0x5844425ce818d376e5dff26675be79444a7d3113e4609110e78ee36d63000b410e2fddbc86ea61daa37a24aa247a1e7748bb842d93ef2976608443538278d2521b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}