{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8f200ed513bc2a1d4f19c499151a503134161d1e6f9bd552b5ca826ba42b8549",
    "signature": "0x21a7f670b10e18de01c8f046d9fcafda79484cd84c4ee321be600ceb10f095666b433a952a3b7b3790d274b134e76cab7e470bae7d224b7cae904cef3bc6b3791b",
    "signer": "0xb01c5940A767EA1A89Fdf69996402FA78af1FB7b",
    "userId": "33372888"
  }
}