{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcff0e84d2d294fa1ce67e66d4bc633c30ac48ae90d3bcbc513af75ae32537112",
    "signature": "0x1c3142d60b8d4f3896c629e62c2ab69223ebf581486ef667d00e330886ab1c87738cf418e7f76dbc3d4e0b21a7319656657bee6474c1fe0abb9a5527cc4408ab1b",
    "signer": "0x26e5edB5490F2Fa4897626dD634f29302117aa7f",
    "userId": "521699858"
  }
}