{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "224818",
    "entityType": "User",
    "nonce": "0x45bdda8eea9a999edfeee926dceb58a9ca22ab4515e5800f1946a0b4164ac512",
    "signature": "0xa2d9412f522d855dbf65fe8eef0e915d80ed09242200fde4be9e99f90b6bdd0d4319e8519d3bf05d7c58f4494c8f9e23951c967f29c25963525c16a160786ec91c",
    "signer": "0xbd46Bcac8C3e064551c2246449d84B4a406021f9",
    "userId": "273766994"
  }
}