{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "202671",
    "entityType": "User",
    "nonce": "0xe4af87615b3e46d3671d54d4594c691070735d9de651c3078d44af15fb8145b0",
    "signature": "0x215e05540a0a99062470fe7ea7c38c35ed2bd514d9d88cc7e9761c3d0bd155b440c9f1d7874c1ab3a559819ed5c6f52be9ff4e1e618c2b4b02246bda23ce65fd1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}