{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x70a63640bc7f3c7252d5b0ed2cacdbd438008fd1b719d73f27827dbc77ac8862",
    "signature": "0x381ba93668b850141c07daceb95dfe1220ce158b7c3865a2a451c42cd209fc5d026bd388094f36d63ee7629e733bdac037b8129037c76761011c15299cd342b11b",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}