{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "142081",
    "entityType": "User",
    "nonce": "0xdbd78a9f340a11d045e6b3da9a7d601071fd5bb2607c94a84c239eea0c82eb51",
    "signature": "0x28e9ffd5728daabde13526783f35a7b5c3c3a9c05178722a53a6f32f0e99266f21abbc22c202092da8ca0b76b7d87890770a9683f8bebb7bc596c0386dee91911c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}