{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "980224167",
    "entityType": "User",
    "nonce": "0xa21dcb932ab1ae62587476235112f5a7f0e16b23860d16246a9f752da0ba4451",
    "signature": "0x7f5ba32568132ea349041091b2233731d219fa04bb5530c3790c139339ee4f323a3777d7b0c8b021102c15d2aebe0fc0d54fc6595cf38271ee55f9a735bfa2b31c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}