{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "481025094",
    "entityType": "User",
    "nonce": "0x55376ecbd16f116691ad4399c8eafff5ce2d2053f7460d511cb31a8a1da21c5a",
    "signature": "0x89ae43b3558eb8147a08ede88b42edc6407b665514df784d831ef3716f0fdac86ed3a0b7845f3ba0cab877fffa07be4e442a4cb7d7ebfb34c628876ad80e2a731b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}