{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10449019",
    "entityType": "User",
    "nonce": "0xba703f3fc9004d6ee8f819e2b36fca51bef1f78ce5765dfc3e8a5cab04cc8aa3",
    "signature": "0x30b3b0e943ea23ed7c7333d3e678fb637dacbf0a334133348816d36e0e0c734903ebcb6bd40581e12e3dc392c23f9cff28475da0033ad6be7b035880d0c242361b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}