{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x141a130b32ed037736b7045dfa39a20dad6341e0857fb98bf3177e7d1c5d4a14",
    "signature": "0xc11a5c580d947e734d8e87ce72c41bb358c257525f28639f77a2d7b89f7d64bb350a0a922332f16286dfdd92f1b37dadacfa4d67d90face0612f8f6773cf5ee11c",
    "signer": "0xe9a34E1e60C16D6d6AE04648Be52340d6B2D8d76",
    "userId": "882372733"
  }
}