{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "487982563",
    "entityType": "User",
    "nonce": "0xf8b4047dfc2162405f9759c699d6e27f8cef59b642736ae268d03c52c93fad06",
    "signature": "0x9ae6bad919fa8009d66433d9dc57b08f888e1da8294e2dac31d093b1686761a53f90b85b455ee4b028b1b9e4f3fb962faafee7bd55c9ff465c02ed9ab7e7d4181b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}