{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "187897",
    "entityType": "User",
    "nonce": "0xfa3dd7feeb8b4b6b06d0056b15dd2d6d43dc8165f5066339cc70965e670dc97b",
    "signature": "0x46f5e8d8db742cbfc21eb4bb5d42228331e048cae1c4fd558577acb64253354922a5d76d91900a08b9280089cfc0190ed7f78c8853a7f0c0fdc91fae67acb9ca1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}