{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305071",
    "entityType": "User",
    "nonce": "0x70b1a8568469f646aa1fa19ac55c93fab8b9ce87b4ee617ec6078d669f4f5f93",
    "signature": "0x7debdb10feeacf1e32a76a7e778c292f135e761721116d23c294e4af75e12d420f8a71e01a9b23f7813ab679f244864bc0970c88966f59af61967ba2687032101c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}