{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61898",
    "entityType": "User",
    "nonce": "0xc42d312ce7697e949493be2d4a1dcb45ab76a498619251e96491d158154d9bbf",
    "signature": "0xc79f7a467e4fe8304eb4524d3f887487056f44b5210eccecda93589a9396096466e92d3e0329f5ec3e295126a4b92ff51ec48ac7f444a3d3090c6c48c5e3ae871c",
    "signer": "0x54A7bEEa4225786D727D79eDe3df2AaB446aC63A",
    "userId": "757958666"
  }
}