{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x652dda5f669af894a3b98a6fd1faaadcb143622d79370e0049086efca43e0c5c",
    "signature": "0xf26bef66b9acfcc60833edcb1379577588b428c36d614ba193f9cc61e490bf5140d3d882f1f8d70281c2029071a27d833558cf993ff56d37cef2fb8018425de61c",
    "signer": "0xF92E3Be85294Fbc19D37E7c909773B572755f070",
    "userId": "478204378"
  }
}