{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "87862265",
    "entityType": "User",
    "nonce": "0x97896fd608dc728b490842f0066ed4b2be00ca91137a195a3f629b6126d09f17",
    "signature": "0x088151316be89241b7725cae7970739c5eab3d6909bd2c83056f5fee150cb07e0b6ba88cd454d5c5d54383fcfd872cf0bf5c7be888847acc64cc9cf479780bd21c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}