{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "687103",
    "entityType": "User",
    "nonce": "0x2705af1a9db7826caa3781ae199e0f8c7e68c2102b3ebbb87311e0810fbc6853",
    "signature": "0xa629f8afc75492bf16be626e389439e7d8b22c4c2ae3a6001b834b6e93ec014e2372843f8471f7d01cf81afda9bfd63de22c426c118ef5f3aca1e9c94c02886b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}