{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x543eef6fef32f615ba7c00f154cb7a51041aa1db7c7f311d3911146261b45b95",
    "signature": "0xa3fd0518bf954e8c33c1c3e3674960b724e256efb9bf5cab4ab6d190c041d651273dbba39f5e2a44ed84aa538a030fd88fb83f673720b0045e29ae1ab0e483de1b",
    "signer": "0x7418199cEc104b0743B1B80843a44529347DA19C",
    "userId": "167094944"
  }
}