{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "670307808",
    "entityType": "User",
    "nonce": "0x6341f465b6b7321aac36e71cf264cd7ae9821d6df0c6946280707bdd89a2ae91",
    "signature": "0x6f0c3c9089e7f32aa5ad422644309b2e03a49bd5185eccd332085776b9c071b11c44bcaf323aa8fdd8f94394c2e91442740fb549aeac8cda94a9a173f732ed411c",
    "signer": "0xe70262fceA7ac15aEce742465EB134d0435Eb0d4",
    "userId": "926812517"
  }
}