{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125633",
    "entityType": "User",
    "nonce": "0xd19a5ed7e91edcc12c961a045d97317c9267e8319ff3c32a0910e42df07ccf10",
    "signature": "0x2a84c3e9e1f7cf06510caa8d4e4e4c752f4e125f143de6a8f195e9b3c89e488b0dc88411b80e68dea9173b41093a6bcc79a16fb00c9063b4d7c436191aa011781c",
    "signer": "0x449418feaBA25A39aE410F0c64EB2473D7e608D3",
    "userId": "629879678"
  }
}