{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x744dea2decd25b00bbe8e71bd576455904bfbb119c647c1dcbdab36b16abb193",
    "signature": "0x23a243fd008eed490a0ceeead232fc73d21934d81c38506db51633f460aeecf867ed5c934bfb6ff72e4e7ac058146ea3ca1cde1f1118aa8264973762a2fc4b021c",
    "signer": "0x93716e020f1e376Be9ec4fF785F3ad50ad2eF68d",
    "userId": "463531545"
  }
}