{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x508f8ea09cce1dc99f3461e934c6694108261be53e90bab61fad5f731a431932",
    "signature": "0x11bc93ba2990d80c39ccddfc15c3cbf726bcb458c5575188b99f3aae0ed01a1429e46206f0a004cac07f7bcf340acb6cad0c71208f38b35be5951a922f708c481c",
    "signer": "0x8cb83e5f705f02c1cB1e0489b3B3c6696b4e45A0",
    "userId": "806420963"
  }
}