{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "101876",
    "entityType": "User",
    "nonce": "0x9f26bd1a0a8a27839d58751cc1f9fbb139ddb0df9b02d1f691e5db09bfd8a339",
    "signature": "0x40e6e901e61e37ca3e122dceaee72a70886182165679bde27bdf521f0461803e6927a8dbaf638155af898d95cf9b75bd7924153384497b93bd791bb5e86b6da11c",
    "signer": "0xF300c20BDBB459E009c4E55c08CFd33E12f8B0Cb",
    "userId": "782218508"
  }
}