{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309080",
    "entityType": "User",
    "nonce": "0x977a0fc5348776d6d00d3379951832f62148915d06ee62bd209dae8a507cf754",
    "signature": "0xdd8b574708d6b87613b2376b9b08734b858e528c96bd869200c95ec76e1eab42431bd16d23738153be5bdc7e1020d8817cb44bc6a357b1996fb8877e2ac570f71c",
    "signer": "0xb68FB6A5ae9015De46D9634e946c04517523Fa43",
    "userId": "134619804"
  }
}