{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdc327ba269a176c03bb2e0211eddecaefb64cc280296934d35826dba6e5a2f6c",
    "signature": "0x343dab3359df23ee15272dcbd6998eb546d1d5509b13f459d56e0dc64195e79a706f9e7482cbf65afbdfe95ab58a8216cff4337f6788b8c37461fc1099e761ea1c",
    "signer": "0xF6F3Bb01882EFecE0434BEa23F34C89A99b978dd",
    "userId": "657190079"
  }
}