{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354993",
    "entityType": "User",
    "nonce": "0x010c393d72ace24c6ed297ebb7615bc87feac601bbc762983db75a8d7d63096b",
    "signature": "0xe71fc3261c10576b1fcc51d03d5c58bc4b9b6e62008114e08f161256239ff6813e70770e32591e4ec2a87da1efd9dc097851fec978772dd955b3a633161857141b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}