{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1265407",
    "entityType": "User",
    "nonce": "0xd69a7941531fdbd82b48ef2a0ba6af872a1ae0503cdf4e1ef523c306c6e5beba",
    "signature": "0x5976bd6d42a71a6dd6079d4d72705c4748133be8ddb190c05230e49de02bb8bd31951d6b2389b0ef2e511b5fc84e658826ba96902f95da1bfb42420300f5494c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}