{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "129166385",
    "entityType": "User",
    "nonce": "0xa03c5bee761a88820d8663d82c6873b008482fdc02cc246a889c39c5064ee662",
    "signature": "0x3b3f775c67d534e66d929f7aa14f42f09d21f807484067015ef442e8831d85b815dc148bd294afb990816d056c2064753fee56f4059e6d167723d5c22db516931c",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}