{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6a85f4f0a4a9120f6c84f7d4069903df87be843136db46f9c298d1f66238ca6a",
    "signature": "0xa5b5a58227c36073bbf31b8f0c9aaa6721016676fef3676fcb6c90661ab794816c45f40e04dfed9c4d29efe281d300d6742cff41963ee6467f337359e1dbbe741c",
    "signer": "0xa6D980407A9D3215A057722baa5d771103d76dD5",
    "userId": "93974225"
  }
}