{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "21894",
    "entityType": "User",
    "nonce": "0xb97d0d05c3297c25b1cbaf6d22abeb18d32a4e80f706aff86cadb140670f49f0",
    "signature": "0xc4b9597e548fa47b03681fb415cf221269afc3e2e7a325ae5cb47fd67cb8498537403365b30c6a950b72839b6e07c0d4b60ec34e06ce697cc3c4e1f563cf6ec41b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}