{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "965127208",
    "entityType": "User",
    "nonce": "0x73960677ee46905e5dbe8f88fe5502649831fb350162209dd005a9055c7eaba7",
    "signature": "0x0a13d3f6b92f3c78edb45d389af39fc8cdcabdc4509084e149a2ee1cfc8dcf6107bc08f8b014d65a9edc6f3a5b1cce64aaa2ad5742a4d1167825055df74e70eb1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}