{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8951b30a0b4b778edfc31b020e2c9d2dd65c0965e535496325f8f49eb9e0c811",
    "signature": "0x41bc27c4bafad309b7059938a477db40b4c30565fd3289318a657e29b6fd6af6303f9414ab077d519e056752aca742cd5c44754ac418ac290a208ae0ceb7d80a1c",
    "signer": "0x24C88C2fc02E1a583514D82b22060c2FE8e917ef",
    "userId": "347298928"
  }
}