{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "700466",
    "entityType": "User",
    "nonce": "0x3737f75a1af2a5646a38beee0516a456adc21a0c7d485f7dd963306cb256285f",
    "signature": "0xf1c9101b8eccf667c7bdee85ab4df65f655734add1a1d916e1b6eeed63bc95c74cd2f4f27095f0dd6e980488a54fa36100f8955d66b26b5ad2cbf34628aafee01b",
    "signer": "0xE726D55D6940a70995Ce9D8aa1aCE76FC6f4f544",
    "userId": "285113781"
  }
}