{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104615",
    "entityType": "User",
    "nonce": "0x65046b2e6957478a263601204f8a87dc87159fc7afb8f9f17286ec249c8b8ff7",
    "signature": "0xd499f33ad68395f37e341c7966ca919185e6ab55077c5958de4ce235b991091e29d83457733f9b30f2ac8ba49b392eef4f3afc71b7b25138fb062513b0f9ff551c",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}