{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xff151a11142c9670037930b129e3ecb11785d39e4b1498ba45073db3faf2d05b",
    "signature": "0xa138f5c53875fa8bd49241120e35e9fc7377fdbc1df9569a5a3c30a5a0fcaf4824430afe52b988dbd10b51cd5bd5ee5bb46e8e545c46bb1e1f4a229324e173591b",
    "signer": "0x559b6d77eC3Ed25461041c6cFfdFc2764f73d202",
    "userId": "370672737"
  }
}