{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x9e30d7d9d042447d49d224b1ba2efb0196f233dd28a29d15c7ebc9451253bb5f",
    "signature": "0x22fae322bccd6d4e93c26bfed4df95abe143d7b85b14b26426c5a93e4d509ed12a99dc6b000ab2406063e0114ae7a33b42ea4714cd988f996342d0d3804581e41b",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}