{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "167438",
    "entityType": "User",
    "nonce": "0x0dc49f8ba0c8e5958db22787b5d66e341c1ee61d250780f0057a1db87a87ec7a",
    "signature": "0x77fa2d74394e67e70d8dc4bb2df332c6c6f20acddfeae2fa1747d4baf2378ea75e755bf8282231a61e1b621848f4da1914e111cea5fedcf5c651ff3b7d7487a51c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}