{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0b89088c22ce2446c0b34b6051a1a7a3daa5e52e619dc1b961e7a5afb04be97e",
    "signature": "0xd59e8829c8781d3b6277f698c3d901b5583f54f04a4241c179ce45eb7ddd1e085eb2c42b71715d0d166def1ed5f0bf401379587a920503194e7d9163a82028d91b",
    "signer": "0x8B4dA74eb8aCD12Fefb0F63f011537c562589a98",
    "userId": "871646096"
  }
}