{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x05eae6616de27ca7cc010b9c87e2b48d46ded0f4769d8dc9c8290792b4ccb333",
    "signature": "0x74a5aae8de875e5149a5feee7c886fcc2afbf3565789f3e05cc9123df691018c4b6470286721a9f7d1372cf2a8bdde88c7c64e9463f42f30283dccb5187717591b",
    "signer": "0x5Df3A2E4B34Fe42345365C26177e792DE82F2e7f",
    "userId": "377614620"
  }
}