{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396",
    "entityType": "User",
    "nonce": "0x77a0ab2d82548e31446a3e0ae6cbb3cbe3590579b9db72fd69f90e6228dccd94",
    "signature": "0xed49ba16950c20a4ee5bc87363c685fbf34e2758cea2c3ecc1919d742efadd672ddb6c749762ab6c5b5ef383a35461125e811d66677b559b28b24c4ea53999b31b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}