{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x098ac3c4aa474b8f485670f8aaec0ae47a7b8e7357f3cdcf4d53a66c99553e77",
    "signature": "0x6e9165662d19632c5f9679ae84fb4b68b150ee11aea1ece70eb899ce43dce21d319af9d4d01fe2ffcbd35bf94b5dcc8880c7a9c863c93aa19b7b8ff29f671ce71c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}