{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x85afd2e63c19bc78c7b1af386f3463bef897120808413bd026bed8e38f4ca7e5",
    "signature": "0x91083f6c369f8e3a257b93ea6359c2110e394100856ed455ec5bc4b879da410e2b7c24f839339a34e615c91b5ab77fdfe4bba670a700c7df17a5222fd30d2a201c",
    "signer": "0x65869a098BF9FBc47eb815621Ae2B52e3bAD8807",
    "userId": "358296481"
  }
}