{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171892",
    "entityType": "User",
    "nonce": "0xe65306e5ae2e34d61d738e132cc101a5bd05179f8d22c21f0bc3036c6140daf5",
    "signature": "0xa82bd14b7438bd840ec77717d410d2139a12bda82b25582f749ceba259e996237106a68d8558051201c103404713409de56b23aa6b39a68a4ca88e236926a8481c",
    "signer": "0x19EDB4c1a8740c323f6e57B80F3422C01875289e",
    "userId": "390804"
  }
}