{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134203",
    "entityType": "User",
    "nonce": "0x4092bbf46ce2658a0f6acebc5878a06e0d9d8ee9661fd7191011f40b5d62e403",
    "signature": "0xde58d676e49fb1ddd3515a31a59055c577d7080b97dc5de2e8ce7bc2b873819019663e0fd86c488289e8c95d45ac4041e1a0db7e400e4a41a27aabd4e6ebbb2d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}