{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "899586058",
    "entityType": "User",
    "nonce": "0xb7d685765b445cd7e98879776e1626d2b1bed43962ef951471d53af7679deca3",
    "signature": "0x5187db5921ee75138cfbb978d7bb24a001612c97cb17230ae93a693464f8735112da008dc92bd8c5b623cd7099cabf72950215daac6ade0112348e16c062d93f1c",
    "signer": "0x24B4E69A50F2892EEA06A4D8AE1f8C2d5019C9A8",
    "userId": "873621847"
  }
}