{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1855643",
    "entityType": "User",
    "nonce": "0x38841e9be372cc6279ecd62a7cff20bdcacfb6e1dbbe2d82b12986987c62961e",
    "signature": "0x738b77159f292337186a80902a319e7b4c5a8a066d38a30f802266bb5557632c2958ccc8d223f3ac7b092a478d38f2428ecada3b5e2feab562cbd0a3544966b11b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}