{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xc1f66138fcada58f24d9b73263390d63d1700bb76aa470873dd3b438bd7ae9e8",
    "signature": "0xb88a3f68f6432d65d0e0afd89473c616b96e0c22f7aff3be525addc826ec544f67203ad751ff09555dea410dafd92e54a8fc58f8f4f530626c52d539cebb08d01b",
    "signer": "0xAfE04b3A47505816aD72A3036422AC553C1dFEc3",
    "userId": "515307498"
  }
}