{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "235412",
    "entityType": "User",
    "nonce": "0xa13c9e02a7b7d0e1d42818354c2ebcf24f88920e243c9216aa2ac9cf6301072b",
    "signature": "0x9b8fa581be43c399601056d24c9b629668adffef9498b7d05d00baa5c0f96fe7220c9031bf2389c9002fc90a5e1035f2c62105c09b61ee197074098321c1a2a11b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}