{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfeef96e80d43136c1db6ccdc32838b0a471587dc7bd7809860e3c89df951e914",
    "signature": "0xf53cc6825e1e9f8b5a116ddfbcb412da7af5a917b0bfd1133aba35979d5564c7050034d02f42f4f5fc40359f508566a79a3ae0d7ebcbfca26fcaffe82c88c2051c",
    "signer": "0x1e02eF682a103Ba0903245B4aF16cea16abF8Ed2",
    "userId": "696661445"
  }
}