{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9d376c91f2e878cda8c5cf05ff8e831137077099e23aadb3082e9ac470a222ba",
    "signature": "0x8040a467bc5e77372128a307b7aff58f1e248e0b6a9bb8aef6d8a7839b25f3ef282aa879c12554356c12d7882b49f176c0102d92962c19440ac73eb996520b0b1c",
    "signer": "0x417eDDac8c012B206149ba19b841C4Fe48A0BFbc",
    "userId": "209161191"
  }
}