{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "778463",
    "entityType": "User",
    "nonce": "0x00f4b795752ec6feafa71b4c5b682e05dcd50efbda9108720f7e5c4dc8887247",
    "signature": "0xe679a2d58a06c250495e20a4b8d732f4ac72feae3a00936f40bf5e583bdf05e76126637a21bd4892fd48e90c4a36bbafa28f4e3634e67d5abd89d49d258d1f811b",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}