{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55368559",
    "entityType": "User",
    "nonce": "0x0dfa6ebcd8d914cb0d6d7d3535593457436f101e29c2853681a3ef4ad4e4d6fc",
    "signature": "0x05744e030257da686268dc6ff61d968c99ec193291b24ac96e7db430d8bcd1a27d133e8f051022dba7ce26b189f119aab84bac9ad41507d457895ec73e169bcd1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}