{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb51d51d09a40c2813091623ac69f8305c84575ec27fe19feec31a727c4975ca4",
    "signature": "0x6f0396e86693bc429c548f9ed4782ad77fb4955061eed089ba95c870891e0edc3bc9d3eb4bf61d1e108abfbc2f17b7c67cc9d20baa3e4b3b2fd2b5ce9dc176f41c",
    "signer": "0x76cC992D9091fd0de734053486Da5F376377bfE3",
    "userId": "655330192"
  }
}