{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "709077025",
    "entityType": "User",
    "nonce": "0xdde9238cdce9c854215f8c415e9368cbc71e314fc25a8a2637b72778d48bc8bb",
    "signature": "0x55b026abb66a672ce450cd5c7b7f3a9104e3bc0467ef04b2dfad9bf27c4f910c0130ffecfb7154f318b909305a4830c1df6ebb6e287f727e78108abc2d90e5711b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}