{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343315",
    "entityType": "User",
    "nonce": "0xc1bbeccb92c92196d0a263a8a7ff8f85b806cd47653642ffa2277d2c7c98b821",
    "signature": "0xd7896dda46f56f30eb6a3b4249f4c488af729a453ed489d35c78eca3c10a00343fd0def14e02a16bd4634a83a3811125c2a68fa8040b617ee5a34b4d3f2fb9f71c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}