{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x792a6321723563d924917287021f4332003ef24dc9da1f49fba714476e72a427",
    "signature": "0xa6fbde7bd2e53904bcf340ac1cdba45510c559ec7ecfcc7c21dc7ac08e6acc185df3cdd56a79d2fb026e6f7c5964e9787a7796157be7a7d7a91bc3ad4d26cfc81c",
    "signer": "0xEcDCbBB87FEe44CF1752B9Fb5CbD25Fc713F4f4F",
    "userId": "49684739"
  }
}