{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "83911",
    "entityType": "User",
    "nonce": "0x5a8a6a3ac3b0ac70ac85eb2aee59882f61b421c8ffe18943d704ccf6b555ff20",
    "signature": "0x4167466aed57190bf8e3a424182cb7b804ff82349bc8d9e066276ff0572e89957fcbaaaa545b13007a359d002c5da3d088f9a24c7df2f1ddc51b71f722af934e1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}