{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcdd35d17402b52fa72f41ab4bb59c6feef269f39e14215cb3c62b7869554d8d2",
    "signature": "0x148fa224d01c21129ac279723e8cc9a1fbe5cef5d6eb3352001e8267b7ab30ae514b53e0ddee4b46b7d994bc4dee53830eb4479d0709295b5c20a59100e42ac61b",
    "signer": "0xDd92873Ebabe0C8745098107BD2457E19020CD61",
    "userId": "631125501"
  }
}