{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "441835",
    "entityType": "User",
    "nonce": "0xe1cd3fab1345a76c7bd171e71103406c04f61a31e0cba1e85f737373e72b50d4",
    "signature": "0x84fb4c133bfdfcb58323c1caab33689928fcc9c77977aca0fc8f391e081acfe9114c70f14932192513715edb2dcd2bb6704e69cd6541fcae0f413bdf3866f2f81b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}