{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854614078",
    "entityType": "User",
    "nonce": "0xc66ffa2c87593d3aff9336469fed39031243af635af62deeb61d0a0656301166",
    "signature": "0x3cfaeed8ed9702cf690959ff21fb15cc6962954a8195a6cbe7328775b8c97de6634ec661e9a9debb5fd783dac867fde21162249f914fd6bc22d779e2161dd5da1b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}