{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "453531208",
    "entityType": "User",
    "nonce": "0x4a0027cf549862cef70a2903f239d0db33564cbd4b89d67496be56ef1861f1e2",
    "signature": "0x6abc2a2e93de94b6b97d1ad5904b1290e8addbda75322a93d510e85492b284f962f38d7c7824ec6dc306f825b8c390500db2dcf7e45554399e24fc82f3b4fb651c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}