{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe48657491c6620c14c3f87a47d00ac18e4f8d6d1d065541ac0e94a157ee9bd00",
    "signature": "0xbbc776f90ebcb546e24a956512d28d2e3c980a747140a2034156fb22085046c728a498c4b3fde2d761263610b3264cbbf854cf39e36e328eec97fff22d19ae201b",
    "signer": "0xD144Fe61E486319F0aed3A158008ec094C04Fc49",
    "userId": "298221337"
  }
}