{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "991877005",
    "entityType": "User",
    "nonce": "0x094e3a74762bed539ca660960ddb3e727b02039a095a16cba4e807c3be67bed9",
    "signature": "0xdc4611986ad1ab8a0cdf77ff98049d64d1252576235a9a78b0dfb670d709c51e2e74c129a4e8ae89885348411c7677ccad68e42d33300c02b1b9831c6e2d7d201b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}