{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0c306284bb102846f84c7ed9d8f6ea53cc9f40bfe05119f19efc446ab552dc16",
    "signature": "0x0c697b78173a1c7318eb3de69d2db0572c24e625a02775db156d1173d6ee63013aa42d1ac61075c66c06ca08b2704090eb5a58db208cfffe395b15182b9c4bfb1b",
    "signer": "0x47A220481bB19e8039cd12fa6c01cd65646EBF16",
    "userId": "522935014"
  }
}