{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x55893e9d9efd0e3367e76b2e79dc1fc056a42143bdd4b34c44bb1b3b3388f352",
    "signature": "0x6a54d18fa52931d3f063dbe9a70aeb02c9b51b637f4dd9690cdb0000d78b21fc20427a55214351d1570ca9cdffaa9a3da25cfd78c40852eb687ce66f834404501b",
    "signer": "0x9fFaFAaC12f94f865863D241d458e9B30e930f56",
    "userId": "207645598"
  }
}