{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x63ce807c3bfeb5b297bc752a6062491f9c16b6d6f35a3aeacfae2fe5edbc2095",
    "signature": "0x625a618bc288b3d484e8c7a5afc1e6cc337e9f6caea38c53e11b62ae35e746023221916bca42692dab88f5f204a498500a04c25b3ccb2082de994805f421c7c31b",
    "signer": "0xe69c53BFc490812f3dc8929eec46e615955446FA",
    "userId": "589953833"
  }
}