{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "167249",
    "entityType": "User",
    "nonce": "0x21c5270f341573549d338d3b1824774981651831bd1eac387bd171c4cf078246",
    "signature": "0xa0a1a8e6cf857fc2a67060a2d94c7fb71ba8c8349cedf474ebce68c1dc4c699f2c2dc0843902dc268420428315962edea1fd241100ed529a21282302ec123a841c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}