{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "102818609",
    "entityType": "User",
    "nonce": "0x461e4d2946d065cf5039268d35f6d869c68cd64e9596aad80ec396d8031e235f",
    "signature": "0x8f948484a9fa8373f9e0d7c954ea49e9c4ef9b4a04fa8e8dad7e6a84d0847cd5249459b5da783665e66551132bdf6a4fe1607c399de95bc7bdde74ec93e422531b",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}