{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234183",
    "entityType": "User",
    "nonce": "0x8cfd5b2ee7072f278b490eb482cadd5e9c109b03944cf0e1196cbb74578dcb80",
    "signature": "0x6ab6b712169ef546861f3112bbc296ff2a1f3122da132459a4ec7f74ca1336a414ebe85f449624d77ad041241e012bb4b7bf4c1daa32ca145cb478cf0c3c43281b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}