{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf6952d8236d6611b9420bc50cdaaec471622ed28040785c9a8072a88f32d2a0e",
    "signature": "0x1aa03c923530b16ace4e2add563170cf0c4758de3238ceac91699bd7c21c1bf622df4974153af86eda0424a2f81dc2603256f2e28986a4f4ad9602da357c69881b",
    "signer": "0x6B581355f374E972636E57ff9c8C7c9512FAA895",
    "userId": "541472989"
  }
}