{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120538",
    "entityType": "User",
    "nonce": "0x4a4a88b0f7b736ab20841e7a987612f4076f7f4bb28da94f4fb52160843d0ab3",
    "signature": "0xf46710244151ec90f43d0b511b7aa1c26ae1f6773165198531fcdf636ad2a5c551f39aef4a6121cf89a1d4ceba011fd0d29751d471285d6d4db5e007779460e41c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}