{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfc4e51d9f113cdcc4f5e62f56a3a7285b5f0d1dccbcd3ccf183bffe808c99662",
    "signature": "0x7aa1abe25abb2562e123041373ad06cdeb0691d36432ccfa06949fe05b0de01d4b45fe824daa0953d1afa6b3ae76d311b3a9bd6b4a42f693b0de8a1383e3ed7a1c",
    "signer": "0x06DDfcD171CA520fDf2F58ED8f41b91Ac799a495",
    "userId": "19098726"
  }
}