{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x89e0847a7a744c851afe785a610fc5bcefa5f5c73a7f07a6e398ebef17b5878e",
    "signature": "0x9dbf940cae71b4d1c40c33f6a7cc9a6441c799c061cf3893dc967437651c6b4062232fa45483ce8790f6b011288d17eb02202549477a371dcee2b4616fedbcde1c",
    "signer": "0x2205833bD910998b6F99FDbd53F5FBd387134b96",
    "userId": "424142613"
  }
}