{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x97fd927127f91ebfd81251a6785e358ace569cb546e9ec99046ec3e98f308052",
    "signature": "0xa5d658a7cf01e50d3fc99b01118f787073fe7d8e8b6ba7c0d884acaa034943483dc4818fe9297a50126233273932cf4266631bfb6689a95b9ceecc3f0b80e3491b",
    "signer": "0xd4Fa8f128FA7719ec4e53Aff396d4698e55617Ea",
    "userId": "267344200"
  }
}