{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44",
    "entityType": "User",
    "nonce": "0x3b907ba0e1ed959d2436ab225b227d279a8f22b7b4348c1fb30dfbfc370adfc8",
    "signature": "0x5cac94e5f9d0d4222a6f4a16bd1fa11d30c3bf94879c1a58dd6394ff6cd760ae6a65939349b3791e287a68babd69d97d02c02317cbed747a16f276cc8a57fbca1c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}