{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "627560",
    "entityType": "User",
    "nonce": "0xdc8550e8aeaf0412dcbf22bbcce5b76fe0eeefbc0bef1f7845297aed9571e7cb",
    "signature": "0x53bfa781015241b7213b125dbbde485aa1c5f7ac4823864b3653c6d641ab69041ec0650bbab2128e91bade1cbf2c6cabf5c0316996feb93ea04dc4095541a1e11c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}