{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "76019",
    "entityType": "User",
    "nonce": "0x6816ec7def58754cde38d5d82396b38d9f8297ba73b35d57134305f44fafbe9a",
    "signature": "0x3dcbaacd4d938b08fe516fc3be1df1beebebbd4da4f44a1556d91b152c0fde4a5f9891df4dc3ecf74aa7b2c56362f9f3a3d388691083bd28e965a9f38f45c2f91b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}