{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "277",
    "entityType": "User",
    "nonce": "0x7de2c7681004157a7eadf4345941a5b37340cddc227c6fe32a1669af97f91201",
    "signature": "0xdc7f27b10391f412a33cb04e3b609a564efacd57509fd17863dc11ad18bcbd323d052d36aae8bdcb96ebaf34239526b9fc695c2a38ce1860b09f2cc26ffd3fbc1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}