{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x67819c54098b53c6d648224e8cca79f646de3bd45c01c635c1cbd5a85a6b96fe",
    "signature": "0xdbe8cb04b90ee99f13cdfa7407a467c3fd51139ef639542ac305966acfa623cc61bf37394d1a76a8db94bd8e774fa655583bc95261912580436f4edc2581fe8e1b",
    "signer": "0x3bAa3e70C456E4B4392FBfb0474cF8EC46fEcaE3",
    "userId": "281406791"
  }
}