{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294",
    "entityType": "User",
    "nonce": "0x0d76e8bc52fccab7fa3198a7a4706cd963084d1ac9b512222efdf27ad22f2e85",
    "signature": "0xf75d9242ce05be5e07392c86ca2a32e9a873ca986366bb9be650c66b8184287f68d2c861557be96f0977fb7b6eb308ae4921ad7f20d678ab25d1bf755ba1d3ff1c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}