{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "644286186",
    "entityType": "User",
    "nonce": "0xf0bc2bca4426178fb2fdb07c8e18ad39b62c4fa54324f790f3fa4e729f762dd6",
    "signature": "0xeda23b7ab752c496545c350b7ffcc48bc77fb9d595176659ace9860ec4a853090ec216e39f06fb33054731231e8286fb6a5ebd8a46f7a194e652b9aebdbb41e11c",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}