{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372928",
    "entityType": "User",
    "nonce": "0x4c32c3f8397fae97cca373c1078cc176aeaa20c12d769b103b7c6193d9e897e9",
    "signature": "0xb47e81a244e766cd02f27cc7383c46f2192ed2a6d38e0c775e70d3a6da7e5f8049f64a91e9812be62e8de9d4c1a433fa9ef7ba320be260484a0e24b43d28f7d21b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}