{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0b59efd056fda3886d95bc859c5781e499569aff6c98236a561aa7ba7054ca6d",
    "signature": "0x202a0f59ed77dfe66b3e21bd3a02a11dd42729040519b3c8eb63eb208493330326169df4e7bb3317e60fa6982232e2d4f58c7ee6c102d794d14e42121debd3981c",
    "signer": "0x942d1A5E2D9d802F10747030C60f6725A0121310",
    "userId": "594428433"
  }
}