{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923480019",
    "entityType": "User",
    "nonce": "0x5e5e708b7efab8206bf299211bc26308cc8139ba3649dd10e3b2d398d517f7d4",
    "signature": "0xdae96e130e8eb05e88a00ef0eb4d4ef99f6c513459e7d6fe2fe1ae56b4e2238b12a34f7e95b6bf97a6dfe35ab03bdde3766a30db425acb1ca71db0f0d7e0b6801c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}