{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "394704",
    "entityType": "User",
    "nonce": "0xf9dd2a7adfc1ffad3148fcd27c55c0a3cca370afb277d3f980c9fa4b028b33b0",
    "signature": "0x6f0258e6ceceb6c9b818899e9b61e06b0a53d2e2ecd3299589e175d5461da82b5a3e00a167526347111b0f166f435f5169ba959dc180d709a17bdece9b35c7e91c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}