{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3848",
    "entityType": "User",
    "nonce": "0x518eaf26d396889522f15232669d14bf7d259c9822bb32670a0d4719cbb24e3e",
    "signature": "0x35725b64e6431f6e74baca6cf994577d184832c1e7b7d6ede0fdff05ac45629332cea005183d31321c9e6e3ff375bb442451b9006e3bd5283516df649905c42a1c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}