{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334749",
    "entityType": "User",
    "nonce": "0xfc3aa156f9083e5d3c22ad7338169697d60b23897d25b7e5012b0e5e60db50d3",
    "signature": "0x15f241bdb5fa235c3a7c962546edcee91887a3a6610f521004a7c76b97c2a2367d4cb4a1c3ee4ac59c59b14ccfb4c6f4c943d35336669cdc24367e6067fc91b41c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}