{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "398179",
    "entityType": "User",
    "nonce": "0x07d334209acee7788ce7378520898d573d3439b7f708b4c272351acbe6b5a10a",
    "signature": "0xe4e932ab21fd93654c02ba8a4c6c55a6b94ee8d432f5c60812fb423ca69dab8e3cf4e3f53a3783b968f5c9a399271c203e6e92557fda762b21802b46ba34d7851b",
    "signer": "0xe4302029B306Ef14608c2F4189442DCc2f1Bef61",
    "userId": "1630548"
  }
}