{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "409915",
    "entityType": "User",
    "nonce": "0x0157e213c834ad39373d6fead109428d87cbe4b3bf1111196dca02713551c07d",
    "signature": "0xafd4dcde2375858628911eb0d63cb450e5c45833c94584960a86a0fbef0ea7364d33900ef9392b5184fbc246a52383002acad5c41fb580bf7d82bb9ae0e77a141b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}