{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x4e090c96f9e118df2f0badea37edfe30b57935f9f617098bc24b1bb45553c5bc",
    "signature": "0x7170801c4d7776d182fef05a3745dce9c2fc2d8f992cec9f1609ab31ab7cb8655048c5886773e9f1be06224e6cb7ac2034c481d8943dfd28c860f4c13383d9bb1c",
    "signer": "0xdB859da145eAc5f173b5a68ee5F22434899fe416",
    "userId": "881880880"
  }
}