{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16684",
    "entityType": "User",
    "nonce": "0x32c3ae4c140c7874807bc11490530de9837924f68cb2b2407c379637b4ae9078",
    "signature": "0x1da4488ae3a39c1a198b95910eee267aa6beb470b1e2a92179ad77f3a7a3ae4c0e60beb1777a59c557a28e7682e25e38a5f1450bef322a22a0bd57fb68efcaec1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}