{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325",
    "entityType": "User",
    "nonce": "0xaf0680f4b02144e213aa89f9e20d0381aea31b70b413db17a4b8a44eded728a5",
    "signature": "0x857eb95ae33c151e2d44c1a67382047ebf5d123d2247ba155b8b6c361d8cba5112f8c798ecceae5fc9aa510b6310f0c24747ece65f6c34d40e0b89e5d85806461c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}