{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "571117272",
    "entityType": "User",
    "nonce": "0x3ac29d11fe2950da680791dd53c47aca60eca760292d6322b26622c56ba07539",
    "signature": "0x4d5fde734d9f156b2bb254fca911352a82697977e8c1c8e1897958c97fa3a3bd33765703043a9b586e325501bec3489174f9006db44ec637d03714ec205778f31b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}