{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358998259",
    "entityType": "User",
    "nonce": "0x77978f24260ef0a0235db3952d2e99bff5919bc86fd689e4074f38fc220f78a9",
    "signature": "0x11c99c0369147912813c141a0ea38cbedb740f2a7aad50cd1b005a1fdde774614b8db4a042da1000eada0ef68c6d3cad411d0fc2bf214b992e1b9236d3f64be31c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}