{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44196",
    "entityType": "User",
    "nonce": "0x387a9fb6e9f5b6b49616324283f06eac40eb80c29241060e551f744c4e96ddc1",
    "signature": "0x980f394ad11bfe87107158e0e4bc4f52b091df6aa78a84c8bae033833752cb864fcbea588ab1530d72c5beb65f6ebc87c0964fd24b5be9cb1cd385e61beb44fa1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}