{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x02d4fe284bde6e5698425d74b52b1106b671ba7c3d14111634f0f13d63071b45",
    "signature": "0x9f233b157357dad7f3bbdf4d4caad0f96b2ffad9a9262b29e39e68f0901d476c1ffaf431f267b1f54ae80acfe4efdc8fa126dec2bbe9a91bea2f063a7f1358af1c",
    "signer": "0x00C2A14a2dc35492B2768b362eBc676E4B6E4979",
    "userId": "657228643"
  }
}