{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "559183",
    "entityType": "User",
    "nonce": "0x10c4a9b718a5184c192420f6aa41bd5325d9284a1627a898212ee83221bfcf38",
    "signature": "0x435e45ff1f003b4a034e086618878d9c39ff006adce7c0d4f8b7e90c806644ba3332d6ecbab8527e3e5edf61fe73307d3aeb636feb8dd6dd596083d1d8132da81b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}