{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75315",
    "entityType": "User",
    "nonce": "0x0c39d927c9aebb484bae340a5ad32c9665dcd238184540e3df13ab8d100a4184",
    "signature": "0x8a4045f83f7a1d06a8dedc78173f35b649b5ccaa6bf7735563f262238d34cde75a9eade79639e58af6758d010bb12ce190b4988ba00163fc3c6ba3f91b09dd871b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}