{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x11d2381db8b84a5691106bd9053d465c9711e5becaf08be3808053bf7f7c4948",
    "signature": "0x0da6a32d4f78d9815e6b6f8d8770bb58601aeea859d7587e70f7db032526874f2baff335da4402043b0db80bd796cf43c3986e372a37ebd24bc61120354247ec1c",
    "signer": "0x83c0371ED43bE3191863Af75C6AA404fD90F0F5A",
    "userId": "510418094"
  }
}