{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xecbb7fe55b93c40844dcabc2ebb443e08c2029964c1b12cfbdfd6003229e713d",
    "signature": "0x62c3a8783e1726d9ebedad9baaf1ad8f4b46033faa42c67d532f8a0050f4714b01e6d02e0fc7187f273372292df388dc0d6e0df6fb31c1c26e0dba32f2365f961b",
    "signer": "0x06a6c22176E3A2b32034BFb072481f93032b0cDC",
    "userId": "441213044"
  }
}