{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0f6324650616647dedc6b52c998e546708b6568599045d5921780dcd49a833c0",
    "signature": "0x68e39f2a620be0485f1a2099343ee5c0b0d4f985ebeede858b2e430138cc38752e66b2ab306af71d9c12f349ef1c72bf4145260a99caac9be48c9628d2e8fc6c1b",
    "signer": "0x3EA35e609478cB4F9e7203de8c4322b1272D3d9C",
    "userId": "631110780"
  }
}