{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "199053",
    "entityType": "User",
    "nonce": "0x681881601a9abaee1a5ee5b098e8a62dd087a0b99ab0da513c4a44bfc47c3a36",
    "signature": "0x8922a78478ead9b89d5dcf17bde76c99d1a046a444f174564d9d5bd0118f48210ababd0d46a15180a8083b9a10fee4f33a07114be6e67d698cf3dc914b008fd81b",
    "signer": "0xa22176a11BF6703EFe39D488aA7cC06aa781C44A",
    "userId": "633924738"
  }
}