{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306838",
    "entityType": "User",
    "nonce": "0x63b855c59c0d60947ff64a92d2246949a223e1789d81cebe30e8c7ce88c60a2d",
    "signature": "0x41f47b0324e8fd7373e2e270c0caac4cbef31fe9624b2e89c48481c18034fc9900bcaa59a2de0fae5c51c36f414c700b7469dd219a2fb671992ee1dfe9bbefcb1c",
    "signer": "0x92a5082636c97Db0Ae888484D85e4c8494A3B791",
    "userId": "895527427"
  }
}