{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaeb5f7b547e33e349bfe72a704494475aec969726c74cc280a146a0e2838ec9d",
    "signature": "0x853009bd4beaa5bc59ad08a917ef2b75786b17b39fa56667d2aee3f05e629ed66b8440ce3eac24471ea0a8aaabeebfdd406a4dd602193a13deaf71b90d4b0d311c",
    "signer": "0xF146DAbBEa4a64091535c0e39A419D65150Fa66c",
    "userId": "449203874"
  }
}