{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "778443",
    "entityType": "User",
    "nonce": "0xe6d8c4fe80b0195d5878acac4930464b547b45430147afec7a79f80f121293f4",
    "signature": "0x7fa57cb1639cd97eee216daf9648f2b89e6fb5ab4ace082ab622ed553a656e2a2293a58eae9744a15814deb6b5a659b38a3923db2d82b8999313dd1ef3e8e27c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}