{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x01e22f23c68630dae1d5efd2f0864e36c2a20069da8edddfc672f0e4703315bb",
    "signature": "0x4c70461ac9d8b38d2837f2ce0a6136fef613401e3d0b11b037665df5025b3f8712d3d46e80ac4272711655b747bff29587916169d1f7b7ba4c2d04c741089c921b",
    "signer": "0xD3477a5D42f26D7d97a9Ed213CF35Eb998C7b687",
    "userId": "737351944"
  }
}