{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370796980",
    "entityType": "User",
    "nonce": "0xf7806d8eea84cd021fbff7ae0e371473702ad7cc8ed766cc1a1af474c0229a46",
    "signature": "0x5dde298a651c47fcc83fd80684e13e05684e1319682b1be8034dda4964465ca82f46304dd0aba7b3054efab9429616154bb059f9e52d0a779b3e6e63b48108be1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}