{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0x72fecce3fcc2f29b90fa839d1e7910c34a5e26cc94180fe1f74b12405a4f0f33",
    "signature": "0xe33cfd56ccac12f4d8d2caab92b81c8978bb4fa3ce74e195a0d4a1589c1feadd62f1a8c6e506751a0e5979344d061466fbe6caeb3f8a3adf4b81de8522906b9f1b",
    "signer": "0x715A5d320e133F509f3675872cbF21D8B0e129d5",
    "userId": "396577"
  }
}