{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7422",
    "entityType": "User",
    "nonce": "0x7dd84a5a2674f326a7f01c4622c15432f20f63e50c7b1f327417d7af25daadcf",
    "signature": "0x35b73cbc2514cd37aeb1caa0980ee64fc6309190be06a7e7de3792a62abbf6e32d4dbedf7d632e0ee7cd1fe45bebc03ce88700442ccc4cef3695b8ceaf291b2f1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}