{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313260",
    "entityType": "User",
    "nonce": "0x45307bc509b8ec5d8efc3137428304a3625b7d7a8ae292359525b1aa38271a43",
    "signature": "0x896d0a9e4e952945ea98d3e270884b056b74bd513b9771e5a3c92d871ad945180331a6c9f1777766b02f59b606db518303768797b08a403a90099bb8fff1b88f1c",
    "signer": "0x1c4Ee34565eE3A8304706138026D7518821F356F",
    "userId": "584804802"
  }
}