{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "776846",
    "entityType": "User",
    "nonce": "0x89820afc4e39decc9e590f52fe5285e3ea86d980ca885f08b947d7871129619e",
    "signature": "0x4db0bbb94f63760104e0f56060c3d745ad5604972b57d710cbc7374c914fa042295872e2f6b6ab5934896978126758a3ba84addd3c29bab8d0466dc1ad0d707e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}