{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb106394c77dc82d7b25dd7a77db26c6880960fed85a75d6f202ae15d01d6707e",
    "signature": "0xb4c5b1b5387495132a3a17ce9a0ce54cec64b8812f2b7df1afad56cac60c5fe13aa63fc67c4572cf138f4529b990f2163c3db81ee08aeef0c1aeb76d847c45af1c",
    "signer": "0x65c85412e96F9349649Ce71a3241C28C9A02c37d",
    "userId": "582968222"
  }
}