{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x708409812244e624242aa64cada2f715163cd7a029390164bee686386fb75fed",
    "signature": "0x0b18ec5bcb20eddaf7fc71f12aeac88a64ef0a9de0ec043966b3a2e9577192a811b5bb51ddbed38f7523aeef97676989f876ac9cf0570d8fcc5db0d430dbb9121c",
    "signer": "0xe89B4eA46De23545E8AcB929115775D26A5e8a8d",
    "userId": "539962318"
  }
}