{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "559755159",
    "entityType": "User",
    "nonce": "0x39345ff7f5b5f0c84849404300dc403a126ac424aab0a2732eb2369c35a0fccb",
    "signature": "0x53369358abe5de48410667d7ee18062c8f99ce5ad1cf9d689bb5a02f2ddfaabc1d3a6bdf081a4e0ee6b3f5657c12de2e3074302bc8e4f72850d6b8a97af5a3701c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}