{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134019",
    "entityType": "User",
    "nonce": "0xfdafc4c9b934768a652493e1388ffe1ed7e73cb2dd5bb6c751a005859fec15f6",
    "signature": "0x381e07821caa128e474b0e913ce8cbe13670dcd70fa787a830e29bb59897e6db4534663be8f59ad8df1fe32c1b2ba3378792d27c99034481942aaa463c5e22c81c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}