{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x85ab517576dc0e6285f8af48e718449dcc84c04c18d4cd3380718ae381b37753",
    "signature": "0x23bcaf1fe478137ba3af12e4879e979f37463551cf7eb22e2e624bc596cdc3177239cbb14d8b6cf2e12d02de0440f03ab01555196ded483b9a26783d7c14a1481c",
    "signer": "0x14caa07DaAd2C100528BfA1b176eE3bcc67C1249",
    "userId": "955197595"
  }
}