{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56960",
    "entityType": "User",
    "nonce": "0x55e7c7cb3fa78a83e3bdc27620d387bebb611ba4b55eab3be0f82ac72a89e351",
    "signature": "0x02b2727b23a0f99f69854227fa117e1d12def8d39e47fc53278cee74900ff15d0ce03074f58fec15d699f94a827930841e0a45021a1de1f97a6b5fb925fc5dc91b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}