{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x493c0971e994405d934bb7ca88e8d5a9891b5db4a0b77ea890303dbce3589b4b",
    "signature": "0x35c042dd440f2e96ac3997f4dcd395912908d1537ded32c51befe6e28ed0242f3e70544e9c7b4121998433830c1d9291190bd3572c405e4cd693c82c823e6a0c1b",
    "signer": "0xdfA30DebD5207EA85cC69880cb2BF48ce78C2287",
    "userId": "473106371"
  }
}