{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd1a176624a29419090ddd69d81719b44f07de43492cae1a16f5c1547e1f0642b",
    "signature": "0x67a2eac2a6ffa3d5d858bef3c52b1df925fd6d3482c461e67f129f12070aeec26a969e0b8ca40ea91d06bd31a2fb79133477c03c57a9241cd1fa01ff5d56832b1c",
    "signer": "0x64A87DD582aE730Ab32B930B93c13612Fc496891",
    "userId": "425911249"
  }
}