{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xccdad4bf6185acf65eb6051c4db507838014c8e18dd9f9e54a7f3a2562b2c9d2",
    "signature": "0x20751bca331f97a65bbf10cf5360dc693c368fb439ae6de38660788750b1c76e7a77917d7bc87c145d345f7660900ceda591d58b7cf15cc7af388686c4aad39a1b",
    "signer": "0x83e386fdA0345C20bbbd1Af26b674A718d0714Bb",
    "userId": "440765480"
  }
}