{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x5bf4481ead7b367f32b23d9ae3520d48e83522bd1cbf6eea61d4af7ff4ec8a33",
    "signature": "0x7b025c494c08b1eae857e46c23515ae2482c765953f0892a93c260755bd3f44e0ba021995e74478371eef9e0da3a7c5c9a14c22c72d5173f611125636c34463b1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}