{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1241be767d3e25d562d152212714d65a7588fec0989ec4cf9ed7d47ed13049e9",
    "signature": "0x17394cf83c1c5cdd7568901484ea6464159daa63ea3db1847f9615d2bc640d8d7acf71b1242c551959e9918a77c2367100c77e4351dfbb265e6b5210437521101c",
    "signer": "0x833A8632B79fc86B30f7b048DC5e93De9DA7B447",
    "userId": "919907816"
  }
}