{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "70490",
    "entityType": "User",
    "nonce": "0x9a843033dcca8d05c4d26dab6bf18f8d4457cad321f07375783bcdc20ff7512b",
    "signature": "0x449e6aedc67ff89bd16df0316687d307b8879f00315b66a24836b2b2899f20dc53b394a181cc860c9634e23e12bc94b5e969b9445b9e25ee9f94c94e643c63d91b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}